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While externally similar shapes, these two minerals are very different inside.
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Siderite from
Reymert Mine, Reymert Canyon, Mineral Mountain Mining District, Pinal County, Arizona, USA


Locality type:Mine
Classification
Species:Siderite
Formula:FeCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Siderite data
Locality Data:Click here to view Reymert Mine, Reymert Canyon, Mineral Mountain Mining District, Pinal County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:420927
Long-form Identifier:1:3:420927:0
GUID (UUID V4):0
Nearest other occurrences of Siderite
10.5km (6.5 miles) ⓘMagmatic Copper Mine (Magmatic Copper Company claims; Stacy claims; Lode Star claims), Apache Leap, Superior, Pinal County, Arizona, USA
11.5km (7.1 miles) ⓘMagma Mine, Superior, Pinal County, Arizona, USA
14.1km (8.8 miles) ⓘSilver King Mine, Comstock Wash, Kings Crown Peak area, Pinal County, Arizona, USA
22.5km (14.0 miles) ⓘRay Mine, Scott Mountain, Pinal County, Arizona, USA
28.1km (17.5 miles) ⓘPoston Butte deposit (Continental Oil Co. property; Aztec Exploration and Development Co. property; Florence Conoco; Florence Copper Co. property), Florence, Florence Mining District (Blackwater Mining District; Black Rock Mining District), Pinal County, Arizona, USA
34.8km (21.6 miles) ⓘFlorence Mine (Florence Lead Silver Mine), Ripsey Hill area, Ripsey Mining District, Tortilla Mountains, Pinal County, Arizona, USA
41.2km (25.6 miles) ⓘMcHur property, 79 Mine, Chilito, Hayden area, Banner Mining District, Gila County, Arizona, USA
41.2km (25.6 miles) ⓘ79 Mine, Chilito, Hayden area, Banner Mining District, Gila County, Arizona, USA
59.3km (36.9 miles) ⓘStonewall Jackson Mine (McMillan Silver Mines group; McMillan-Stonewall Mine; Stonewall Jackson-Little Mac Mine), McMillanville Mining District (McMillanville), Globe Hills Mining District, Gila County, Arizona, USA
73.4km (45.6 miles) ⓘBlack Rock group (Davis group; Davis claims), Mescal Mountains, Graham County, Arizona, USA
References
MRDS database Dep. ID #10048319, MRDS ID #M899890.
Locality descriptionIdentification: Visual Identification
 
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