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Star Garnet

A variety of Almandine
This page kindly sponsored by Tom Isenberg
04772590017272470926180.jpg
Star Garnet

Emerald Creek, Latah County, Idaho, USA
04772590017272470926180.jpg
Star Garnet

Emerald Creek, Latah County, Idaho, USA
04772590017272470926180.jpg
Star Garnet

Emerald Creek, Latah County, Idaho, USA
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About Star GarnetHide

Formula:
Fe2+3Al2(SiO4)3
Colour:
red to purple
Lustre:
Vitreous
A variety of almandine exhibiting a four-rayed or rarely six-rayed star due to oriented inclusions of rutile.
The Idaho state gemstone.


Unique IdentifiersHide

Mindat ID:
27165 (as Star Garnet)
452 (as Almandine)
Long-form identifier:
mindat:1:1:27165:9 (as Star Garnet)
mindat:1:1:452:5 (as Almandine)

Pronunciation of Star GarnetHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Physical Properties of Star GarnetHide

Lustre:
Vitreous
Colour:
Red to purple

Chemistry of Star GarnetHide

Mindat Formula:
Fe2+3Al2(SiO4)3
Element Weights:
Element% weight
O38.572 %
Fe33.659 %
Si16.928 %
Al10.842 %

Calculated from ideal end-member formula.
Elements listed:
Al, Fe, O, Si - search for minerals with similar chemistry

Other Language Names for Star GarnetHide

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Star GarnetHide

References for Star GarnetHide

Localities for Star GarnetHide

Showing 1 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
USA
 
  • Idaho
    • Latah County
Ream (1995) +1 other reference
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