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Mount Brussilof mine (Bay Mag Mine), Radium Hot Springs, Golden Mining Division, British Columbia, Canada i
Regional Level Types
Mount Brussilof mine (Bay Mag Mine) Mine
Radium Hot Springs Hot Springs
Golden Mining Division Division
British Columbia Province
Canada Country

Regional Level Types
Mount Brussilof mine (Bay Mag Mine)	Mine
Radium Hot Springs	Hot Springs
Golden Mining Division	Division
British Columbia	Province
Canada	Country

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View of Radium Hot Springs mining area, in 1928.

Mount Brussilof mine, Radium Hot Springs, Golden Mining Division, British Columbia, Canada

Svanbergite

Mount Brussilof mine, Radium Hot Springs, Golden Mining Division, British Columbia, Canada

Dolomite

Mount Brussilof mine, Radium Hot Springs, Golden Mining Division, British Columbia, Canada

View of Radium Hot Springs mining area, in 1928.

Mount Brussilof mine, Radium Hot Springs, Golden Mining Division, British Columbia, Canada

Svanbergite

Mount Brussilof mine, Radium Hot Springs, Golden Mining Division, British Columbia, Canada

Dolomite

Mount Brussilof mine, Radium Hot Springs, Golden Mining Division, British Columbia, Canada

View of Radium Hot Springs mining area, in 1928.

Mount Brussilof mine, Radium Hot Springs, Golden Mining Division, British Columbia, Canada

Svanbergite

Mount Brussilof mine, Radium Hot Springs, Golden Mining Division, British Columbia, Canada

Latitude & Longitude (WGS84):

50° 47' 14'' North , 115° 40' 53'' West

Latitude & Longitude (decimal):

Type:

Köppen climate type:

Dfc : Subarctic climate

Nearest Settlements:

Place	Population	Distance
Invermere	2,871 (2008)	39.1km
Canmore	12,288 (2015)	40.2km
Banff	7,502 (2010)	43.9km

Mindat Locality ID:

485

Long-form identifier:

mindat:1:2:485:0

GUID (UUID V4):

Magnesite mine (started in 1982) working a sediment-hosted magnesite deposit. 790x500x120 metres
17,600,000 tonnes (1986)
Commodity Grade
Magnesite 92.4400 per cent
Comments: Grade averages 92.44 per cent magnesia in the calcined product

Common impurities of the magnesite ore are isolated rhombohedral dolomite crystals, calcite veins, pyrite veins, subvertical fractures filled by a mixture of beige ankerite, calcite and chlorite, coarse radiating or single quartz crystals and coarse pyrite pyritohedrons and octahedrons disseminated within sparry magnesite. Chalcocite, fersmite, phlogopite, talc and coarse, white acicular palygorskite were also observed in the mine. Boulangerite, huntite and brucite were reported from laboratory analysis (Rob Woodside fieldwork, 1990).

In the Mount Brussilof area, the projection of the Cathedral Escarpment coincides with a ‘faulted facies change’ as mapped by Leech. The Mount Brussilof magnesite mine is located 200 m or less from the projection of the Cathedral Escarpment. Faults coinciding with the Cathedral Escarpment, including the Mitchell River fault, may have channeled hydrothermal fluids responsible for magnesite formation or recrystallisation, sparry dolomitisation, and, ultimately, fersmite crystallisation.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

ⓘ Magnesite

Mineral List

28 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

ⓘ 'Intraformational breccia'

Detailed Mineral List:

ⓘ Ankerite

Formula: Ca(Fe²⁺,Mg)(CO₃)₂

References:

GJ Simandl, KD Hancock (1991) Geology of the Mount Brussilof Magnesite Deposit, Southeastern British Columbia (82J/12, 13). British Columbia Geological Survey Paper 1991-I pp 269-278

(n.d.) Minfile, British Columbia Ministry of Energy, Mines and Petroleum Resources.

ⓘ 'Apatite'

Formula: Ca₅(PO₄)₃(Cl/F/OH)

References:

Leybourne, Matthew I., Simandl, George J., Petrus, Joseph A., Paradis, Suzanne, Akam, Carlee, Voinot, Alexander, Archibald, Douglas, McDonald, Andrew M. (2025) U-Pb Geochronology of Fersmite: Potential Time Constraints on Magnesite Formation, Sparry Dolomitisation, and MVT Pb-Zn Mineralisation in SE British Columbia, Canada. Minerals, 15 (2). doi:10.3390/min15020128

ⓘ Aragonite

Formula: CaCO₃

Colour: Honey-yellow

Description: The Aragonites I believe have been found twice in separate pockets some 5 years apart. The first pocket/vein was a rich translucent honey colouration and the ones from the pocket whose specimen is pictured here, were mostly clear with some limonite staining and deposition on them. The honey coloured group were in radiating masses, and the most recent ones, which came out about 20 years ago were mostly loose singles, some doubly terminated and small groups of sprays and only a few actually on a dolomite matrix.

References:

Ray Hill.

ⓘ Baryte

Formula: BaSO₄

References:

ⓘ Boulangerite

Formula: Pb₅Sb₄S₁₁

References:

GJ Simandl, KD Hancock (1991) Geology of the Mount Brussilof Magnesite Deposit, Southeastern British Columbia (82J/12, 13). British Columbia Geological Survey Paper 1991-I pp 269-278

(n.d.) Minfile, British Columbia Ministry of Energy, Mines and Petroleum Resources.

ⓘ Brucite

Formula: Mg(OH)₂

References:

GJ Simandl, KD Hancock (1991) Geology of the Mount Brussilof Magnesite Deposit, Southeastern British Columbia (82J/12, 13). British Columbia Geological Survey Paper 1991-I pp 269-278

(n.d.) Minfile, British Columbia Ministry of Energy, Mines and Petroleum Resources.

ⓘ Calcite

Formula: CaCO₃

References:

Geological Survey of Canada, Open File 2167

GJ Simandl, KD Hancock (1991) Geology of the Mount Brussilof Magnesite Deposit, Southeastern British Columbia (82J/12, 13). British Columbia Geological Survey Paper 1991-I pp 269-278

(n.d.) Minfile, British Columbia Ministry of Energy, Mines and Petroleum Resources.

ⓘ Chalcocite

Formula: Cu₂S

References:

GJ Simandl, KD Hancock (1991) Geology of the Mount Brussilof Magnesite Deposit, Southeastern British Columbia (82J/12, 13). British Columbia Geological Survey Paper 1991-I pp 269-278

(n.d.) Minfile, British Columbia Ministry of Energy, Mines and Petroleum Resources.

ⓘ 'Chlorite Group'

References:

GJ Simandl, KD Hancock (1991) Geology of the Mount Brussilof Magnesite Deposit, Southeastern British Columbia (82J/12, 13). British Columbia Geological Survey Paper 1991-I pp 269-278

(n.d.) Minfile, British Columbia Ministry of Energy, Mines and Petroleum Resources.

ⓘ Clinochlore

Formula: Mg₅Al(AlSi₃O₁₀)(OH)₈

References:

Geological Survey of Canada, Open File 2167

ⓘ Clinochlore var. Leuchtenbergite

Formula: Mg₅Al(AlSi₃O₁₀)(OH)₈

References:

Geological Survey of Canada, Open File 2167

ⓘ Diopside

Formula: CaMgSi₂O₆

References:

ⓘ Dolomite

Formula: CaMg(CO₃)₂

References:

Geological Survey of Canada, Open File 2167

GJ Simandl, KD Hancock (1991) Geology of the Mount Brussilof Magnesite Deposit, Southeastern British Columbia (82J/12, 13). British Columbia Geological Survey Paper 1991-I pp 269-278

(n.d.) Minfile, British Columbia Ministry of Energy, Mines and Petroleum Resources.

ⓘ Euclase

Formula: BeAl(SiO₄)(OH)

Description: The Euclase is about .9 cm long. The Euclases came out of a single dirt filled pocket found by a visiting geologist and numbered about a 140 in total, mostly broken and not terminated. There are specimens in both the National and Royal Ontario Museums, as well as in the possession of Ray Hill, and that of two other dealers.

References:

Ray Hill.

ⓘ Fersmite

Formula: CaNb₂O₆

References:

GJ Simandl, KD Hancock (1991) Geology of the Mount Brussilof Magnesite Deposit, Southeastern British Columbia (82J/12, 13). British Columbia Geological Survey Paper 1991-I pp 269-278

(n.d.) Minfile, British Columbia Ministry of Energy, Mines and Petroleum Resources.

ⓘ Galena

Formula: PbS

Habit: cubes

Colour: grey black

Description: Tiny black xls with cleavage. Recently these black specs have been marketed as Fersmite. Fersmite fluoresces while galena does not.

References:

Christopher O'Neill collection

ⓘ Goyazite

Formula: SrAl₃(PO₄)(PO₃OH)(OH)₆

References:

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

References:

ⓘ Halite

Formula: NaCl

References:

ⓘ Huntite

Formula: CaMg₃(CO₃)₄

References:

GJ Simandl, KD Hancock (1991) Geology of the Mount Brussilof Magnesite Deposit, Southeastern British Columbia (82J/12, 13). British Columbia Geological Survey Paper 1991-I pp 269-278

(n.d.) Minfile, British Columbia Ministry of Energy, Mines and Petroleum Resources.

ⓘ 'Limonite'

References:

(n.d.) Minfile, British Columbia Ministry of Energy, Mines and Petroleum Resources.

ⓘ Magnesite

Formula: MgCO₃

References:

GJ Simandl, KD Hancock (1991) Geology of the Mount Brussilof Magnesite Deposit, Southeastern British Columbia (82J/12, 13). British Columbia Geological Survey Paper 1991-I pp 269-278

(n.d.) Minfile, British Columbia Ministry of Energy, Mines and Petroleum Resources.

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

Geological Survey of Canada, Open File 2167

ⓘ Muscovite var. Illite

Formula: K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂

References:

Geological Survey of Canada, Open File 2167

ⓘ Muscovite var. Sericite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

Geological Survey of Canada, Open File 2167

ⓘ Palygorskite

Formula: ◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O

References:

Geological Survey of Canada, Open File 2167

GJ Simandl, KD Hancock (1991) Geology of the Mount Brussilof Magnesite Deposit, Southeastern British Columbia (82J/12, 13). British Columbia Geological Survey Paper 1991-I pp 269-278

(n.d.) Minfile, British Columbia Ministry of Energy, Mines and Petroleum Resources.

ⓘ Pentlandite

Formula: (Ni_xFe_y)_Σ9S₈

References:

Geological Survey of Canada, Open File 2167

ⓘ Phlogopite

Formula: KMg₃(AlSi₃O₁₀)(OH)₂

References:

GJ Simandl, KD Hancock (1991) Geology of the Mount Brussilof Magnesite Deposit, Southeastern British Columbia (82J/12, 13). British Columbia Geological Survey Paper 1991-I pp 269-278

(n.d.) Minfile, British Columbia Ministry of Energy, Mines and Petroleum Resources.

ⓘ Pyrite

Formula: FeS₂

References:

GJ Simandl, KD Hancock (1991) Geology of the Mount Brussilof Magnesite Deposit, Southeastern British Columbia (82J/12, 13). British Columbia Geological Survey Paper 1991-I pp 269-278

(n.d.) Minfile, British Columbia Ministry of Energy, Mines and Petroleum Resources.

ⓘ Quartz

Formula: SiO₂

References:

GJ Simandl, KD Hancock (1991) Geology of the Mount Brussilof Magnesite Deposit, Southeastern British Columbia (82J/12, 13). British Columbia Geological Survey Paper 1991-I pp 269-278

(n.d.) Minfile, British Columbia Ministry of Energy, Mines and Petroleum Resources.

ⓘ Rutile

Formula: TiO₂

References:

ⓘ Rutile var. Niobium-bearing Rutile

Formula: (Ti,Nb)O₂

References:

ⓘ Sphalerite

Formula: ZnS

Description: tiny brown xls. Svandbergite is more orange

References:

Christopher O'Neill collection

ⓘ Svanbergite

Formula: SrAl₃(PO₄)(SO₄)(OH)₆

References:

element51.com

Frost, Ray L., Palmer, Sara J. (2011) Molecular structure of the mineral svanbergite SrAl₃(PO₄,SO₄)₂(OH)₆ – A vibrational spectroscopic study. Journal of Molecular Structure, 994 (1) 232-237 doi:10.1016/j.molstruc.2011.03.023

ⓘ Talc

Formula: Mg₃Si₄O₁₀(OH)₂

References:

GJ Simandl, KD Hancock (1991) Geology of the Mount Brussilof Magnesite Deposit, Southeastern British Columbia (82J/12, 13). British Columbia Geological Survey Paper 1991-I pp 269-278

(n.d.) Minfile, British Columbia Ministry of Energy, Mines and Petroleum Resources.

ⓘ 'Xenotime'

References:

Gallery:

SrAl₃(PO₄)(SO₄)(OH)₆ⓘ Svanbergite

Svanbergite

Mount Brussilof mine, Radium Hot Springs, Golden Mining Division, British Columbia, Canada

Svanbergite, etc.

Mount Brussilof mine, Radium Hot Springs, Golden Mining Division, British Columbia, Canada

Svanbergite

Mount Brussilof mine, Radium Hot Springs, Golden Mining Division, British Columbia, Canada

Svanbergite

Mount Brussilof mine, Radium Hot Springs, Golden Mining Division, British Columbia, Canada

Svanbergite, etc.

Mount Brussilof mine, Radium Hot Springs, Golden Mining Division, British Columbia, Canada

Svanbergite

Mount Brussilof mine, Radium Hot Springs, Golden Mining Division, British Columbia, Canada

Svanbergite

Mount Brussilof mine, Radium Hot Springs, Golden Mining Division, British Columbia, Canada

Svanbergite, etc.

Mount Brussilof mine, Radium Hot Springs, Golden Mining Division, British Columbia, Canada

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Chalcocite	2.BA.05	Cu₂S
ⓘ	Pentlandite	2.BB.15	(Ni_xFe_y)_Σ9S₈
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Galena	2.CD.10	PbS
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Boulangerite	2.HC.15	Pb₅Sb₄S₁₁
Group 3 - Halides
ⓘ	Halite	3.AA.20	NaCl
Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Rutile	4.DB.05	TiO₂
ⓘ	var. Niobium-bearing Rutile	4.DB.05	(Ti,Nb)O₂
ⓘ	Fersmite	4.DG.05	CaNb₂O₆
ⓘ	Brucite	4.FE.05	Mg(OH)₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Magnesite	5.AB.05	MgCO₃
ⓘ	Ankerite	5.AB.10	Ca(Fe²⁺,Mg)(CO₃)₂
ⓘ	Dolomite	5.AB.10	CaMg(CO₃)₂
ⓘ	Aragonite	5.AB.15	CaCO₃
ⓘ	Huntite	5.AB.25	CaMg₃(CO₃)₄
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Baryte	7.AD.35	BaSO₄
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Svanbergite	8.BL.05	SrAl₃(PO₄)(SO₄)(OH)₆
ⓘ	Goyazite	8.BL.10	SrAl₃(PO₄)(PO₃OH)(OH)₆
Group 9 - Silicates
ⓘ	Euclase	9.AE.10	BeAl(SiO₄)(OH)
ⓘ	Diopside	9.DA.15	CaMgSi₂O₆
ⓘ	Talc	9.EC.05	Mg₃Si₄O₁₀(OH)₂
ⓘ	Muscovite var. Illite	9.EC.15	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
ⓘ		9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var. Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Phlogopite	9.EC.20	KMg₃(AlSi₃O₁₀)(OH)₂
ⓘ	Clinochlore	9.EC.55	Mg₅Al(AlSi₃O₁₀)(OH)₈
ⓘ	var. Leuchtenbergite	9.EC.55	Mg₅Al(AlSi₃O₁₀)(OH)₈
ⓘ	Palygorskite	9.EE.20	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
Unclassified
ⓘ	'Chlorite Group'	-
ⓘ	'Limonite'	-
ⓘ	'Xenotime'	-
ⓘ	'Apatite'	-	Ca₅(PO₄)₃(Cl/F/OH)

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Brucite	Mg(OH)₂
H	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
H	ⓘ Euclase	BeAl(SiO₄)(OH)
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Goyazite	SrAl₃(PO₄)(PO₃OH)(OH)₆
H	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Palygorskite	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
H	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
H	ⓘ Svanbergite	SrAl₃(PO₄)(SO₄)(OH)₆
H	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
H	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Clinochlore var. Leuchtenbergite	Mg₅Al(AlSi₃O₁₀)(OH)₈
H	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Be	Beryllium
Be	ⓘ Euclase	BeAl(SiO₄)(OH)
C	Carbon
C	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
C	ⓘ Aragonite	CaCO₃
C	ⓘ Calcite	CaCO₃
C	ⓘ Dolomite	CaMg(CO₃)₂
C	ⓘ Huntite	CaMg₃(CO₃)₄
C	ⓘ Magnesite	MgCO₃
O	Oxygen
O	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
O	ⓘ Aragonite	CaCO₃
O	ⓘ Baryte	BaSO₄
O	ⓘ Brucite	Mg(OH)₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
O	ⓘ Diopside	CaMgSi₂O₆
O	ⓘ Dolomite	CaMg(CO₃)₂
O	ⓘ Euclase	BeAl(SiO₄)(OH)
O	ⓘ Fersmite	CaNb₂O₆
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Goyazite	SrAl₃(PO₄)(PO₃OH)(OH)₆
O	ⓘ Huntite	CaMg₃(CO₃)₄
O	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
O	ⓘ Magnesite	MgCO₃
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Palygorskite	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
O	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Rutile	TiO₂
O	ⓘ Svanbergite	SrAl₃(PO₄)(SO₄)(OH)₆
O	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
O	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Rutile var. Niobium-bearing Rutile	(Ti,Nb)O₂
O	ⓘ Clinochlore var. Leuchtenbergite	Mg₅Al(AlSi₃O₁₀)(OH)₈
O	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
F	Fluorine
F	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Na	Sodium
Na	ⓘ Halite	NaCl
Mg	Magnesium
Mg	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Mg	ⓘ Brucite	Mg(OH)₂
Mg	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
Mg	ⓘ Diopside	CaMgSi₂O₆
Mg	ⓘ Dolomite	CaMg(CO₃)₂
Mg	ⓘ Huntite	CaMg₃(CO₃)₄
Mg	ⓘ Magnesite	MgCO₃
Mg	ⓘ Palygorskite	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
Mg	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Mg	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
Mg	ⓘ Clinochlore var. Leuchtenbergite	Mg₅Al(AlSi₃O₁₀)(OH)₈
Al	Aluminium
Al	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
Al	ⓘ Euclase	BeAl(SiO₄)(OH)
Al	ⓘ Goyazite	SrAl₃(PO₄)(PO₃OH)(OH)₆
Al	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Palygorskite	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
Al	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Al	ⓘ Svanbergite	SrAl₃(PO₄)(SO₄)(OH)₆
Al	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Clinochlore var. Leuchtenbergite	Mg₅Al(AlSi₃O₁₀)(OH)₈
Si	Silicon
Si	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
Si	ⓘ Diopside	CaMgSi₂O₆
Si	ⓘ Euclase	BeAl(SiO₄)(OH)
Si	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Palygorskite	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
Si	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
Si	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Clinochlore var. Leuchtenbergite	Mg₅Al(AlSi₃O₁₀)(OH)₈
P	Phosphorus
P	ⓘ Goyazite	SrAl₃(PO₄)(PO₃OH)(OH)₆
P	ⓘ Svanbergite	SrAl₃(PO₄)(SO₄)(OH)₆
P	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
S	Sulfur
S	ⓘ Baryte	BaSO₄
S	ⓘ Boulangerite	Pb₅Sb₄S₁₁
S	ⓘ Chalcocite	Cu₂S
S	ⓘ Galena	PbS
S	ⓘ Gypsum	CaSO₄ · 2H₂O
S	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
S	ⓘ Pyrite	FeS₂
S	ⓘ Sphalerite	ZnS
S	ⓘ Svanbergite	SrAl₃(PO₄)(SO₄)(OH)₆
Cl	Chlorine
Cl	ⓘ Halite	NaCl
Cl	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
K	Potassium
K	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
K	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Ca	ⓘ Aragonite	CaCO₃
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Diopside	CaMgSi₂O₆
Ca	ⓘ Dolomite	CaMg(CO₃)₂
Ca	ⓘ Fersmite	CaNb₂O₆
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Huntite	CaMg₃(CO₃)₄
Ca	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Ti	Titanium
Ti	ⓘ Rutile	TiO₂
Ti	ⓘ Rutile var. Niobium-bearing Rutile	(Ti,Nb)O₂
Fe	Iron
Fe	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Fe	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
Fe	ⓘ Pyrite	FeS₂
Ni	Nickel
Ni	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
Cu	Copper
Cu	ⓘ Chalcocite	Cu₂S
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
Sr	Strontium
Sr	ⓘ Goyazite	SrAl₃(PO₄)(PO₃OH)(OH)₆
Sr	ⓘ Svanbergite	SrAl₃(PO₄)(SO₄)(OH)₆
Nb	Niobium
Nb	ⓘ Fersmite	CaNb₂O₆
Nb	ⓘ Rutile var. Niobium-bearing Rutile	(Ti,Nb)O₂
Sb	Antimony
Sb	ⓘ Boulangerite	Pb₅Sb₄S₁₁
Ba	Barium
Ba	ⓘ Baryte	BaSO₄
Pb	Lead
Pb	ⓘ Boulangerite	Pb₅Sb₄S₁₁
Pb	ⓘ Galena	PbS

Other Databases

Link to British Columbia Minfile:	082JNW001

Other Regions, Features and Areas containing this locality

North AmericaContinent

Rocky MountainsMountain Range

North America PlateTectonic Plate

Cordillera Front and ThrustOrogenic Belt
West Canadian-Alberta basinBasin

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References

Simandl, G.J., and Hancock, K.D. (1991): Geology of the Mount Brussilof magnesite deposit, southeastern British Columbia. In: Geological Fieldwork 1990, British Columbia Ministry of Energy, Mines and Petroleum Resources, Paper 1991-1, p. 269–278.

Simandl, G.J., Hancock, K.D., Fournier, M.A., Koyanagi, V.M., Vilkos, V., Lett, R.E., and Colbourne, C. (1992): Geology and major element geochemistry of the Mount Brussilof magnesite area, Southeastern British Columbia (082J/ 12, 13). British Columbia Ministry of Energy, Mines and Petroleum Resources, Mineral Resources Division, Geological Survey Branch, Open File 1992-14, p. 1–14 plus map.

Fritz, W.H., and Simandl, G.J. (1993): New middle Cambrian fossil and geological data from the Brussilof magnesite mine area, southeastern British Columbia. Geological Survey of Canada, Paper 93-1A, p. 183–190, https://doi.org/10.4095/134205.

Marshall, D., Simandl, G., and Voormeij, D. (2004): Fluid inclusion evidence for the genesis of the Mount Brussilof magnesite deposit. In: Simandl, G.J., McMillan, W.J., and Robinson, N.D., eds., Industrial Minerals with Emphasis on Western North America: British Columbia Ministry of Energy and Mines, Geological Survey Paper 2004–2, p. 65–75.

Paradis S. and Simandl G.J. (2017) Are there genetic links between carbonate-hosted barite-zinc-lead sulphide deposits and magnesite mineralization in southeastern British Columbia?: in Targeted Geoscience Initiative: 2017 report of activities; Geological Survey of Canada Open File Report 8358 p. 217-227. (They indicate the presence of goyazite and not svanbergite; a photo of the open pit and in-situ euhedral bladed magnesite crystals and euhedral rhombohedral dolomite crystals are on page 225.)

Simandl G.J., Petrus J.A., Leybourne M.I., Paradis S. and Akim C. (2018) Characterization of primary fersmite from the Mount Brussilof magnesite deposit, southeastern British Columbia, Canada. In: Geological Fieldwork 2018, British Columbia Ministry of Energy, Mines and Petroleum Resources; British Columbia Geological Survey Paper 2019-1, pp. 113-123. (microprobe analyses: 20 microprobe analyses of 2 fersmite samples and elemental mapping of fersmite grains)

miningdataonline.com (2020) https://miningdataonline.com/property/1618/Mount-Brussilof--(Baymag)-Mine.aspx

cmscontent.nrs.gov.bc.ca (2022) http://cmscontent.nrs.gov.bc.ca/geoscience/PublicationCatalogue/Paper/BCGS_P2004-02-12_Simandl.pdf

[1]Leybourne, Matthew I., Simandl, George J., Petrus, Joseph A., Paradis, Suzanne, Akam, Carlee, Voinot, Alexander, Archibald, Douglas, McDonald, Andrew M. (2025) U-Pb Geochronology of Fersmite: Potential Time Constraints on Magnesite Formation, Sparry Dolomitisation, and MVT Pb-Zn Mineralisation in SE British Columbia, Canada. Minerals, 15 (2). doi:10.3390/min15020128

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