Locality type: | Mine |
Classification |
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Species: | Opal |
Formula: | SiO2 · nH2O |
Confirmation |
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Validity: | Believed Valid |
Data |
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Mineral Data: | Click here to view Opal data |
Locality Data: | Click here to view Iron Ridge Mines, Iron Ridge Mining District (Neda Iron Mining District), Dodge County, Wisconsin, USA |
Data Identifiers |
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Mindat Occurrence Record ID: | 128203 |
Long-form Identifier: | 1:3:128203:0 |
GUID (UUID V4): | 637520d7-4ce2-4281-bb68-ab3e7d312bd6 |
Localities for Opal in this Region |
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Iron Ridge Mine (Neda Mine; Oliver Mine), Iron Ridge Mines, Iron Ridge Mining District (Neda Iron Mining District), Dodge County, Wisconsin, USA |
Mayville Shaft Mine, Iron Ridge Mines, Iron Ridge Mining District (Neda Iron Mining District), Dodge County, Wisconsin, USA |
Nearest other occurrences of Opal |
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0.2km (0.1 miles) | ⓘIron Ridge Mine (Neda Mine; Oliver Mine), Iron Ridge Mines, Iron Ridge Mining District (Neda Iron Mining District), Dodge County, Wisconsin, USA |
References |
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Reference Search (possible matching items) |
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| | Report (issue) | .. - ._-.- ---------- BULLETIN NO.6. '£Hl~ IRON ORES 0]' MINNESOTA, THEIR GEOLOGY, DISCOVERY,... ORIGIN, AND DEVELOPMENT, COMPARISON OTHER IRON WITH QUALITIES THOSE AND OF DISTRICTS, 'VITH...extra edition published at their own expense,] THE IRON ORES OF MINNESOTA. CONTENTS. Pa,gc. Preface ....The carbonated iron group .......................... . (4). The gabbro-titanic· iron group ............the crystalline iron ores of Minnesota .. . (6). Comparisons wiLh Michigan and Wisconsin.............. |
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