Classification |
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Species: | Ranciéite |
Formula: | (Ca,Mn2+)0.2(Mn4+,Mn3+)O2 · 0.6H2O |
Comments: | generaly associated with secondary calcite, Found in less then 1% of all cocoanuts |
Habit: | irregular masses, dendrites, hexagonal plates |
Colour: | black |
Confirmation |
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Validity: | Believed Valid |
Data |
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Mineral Data: | Click here to view Ranciéite data |
Locality Data: | Click here to view Las Choyas, Aldama Municipality, Chihuahua, Mexico |
Data Identifiers |
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Mindat Occurrence Record ID: | 423175 |
Long-form Identifier: | 1:3:423175:2 |
GUID (UUID V4): | b0f16595-229a-4a75-b410-656cd81b9ac7 |
References |
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Reference Search (possible matching items) |
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| | Journal (issue) | Micro Minerals of the Las Choyas Geodes, Aldama Municipality, Chihuahua, Mexico By Beth Heesacker My...that I invited to vend at our show brought these Las Choyas geodes, among others, to the show along with...Agate var. Amethyst var. Chalcedony Ramsdellite Ranciéite The rest of this article probably Siderite Todorokite | | | Journal (article/letter/editorial) | cattle on Trinidad Carrillo’s Mesteño Ranch in Chihuahua, Mexico. Little did he know that he had just discovered...of the world’s greatest geode deposits. The Las Choyas Geode Deposit Downloaded by [Florida International...International University] at 20:00 23 August 2013 Chihuahua Mexico Figure 1. Quartz with an outstanding calcite... Figure 2. A view of the southern end of the Las Choyas geode deposit. The Carrillo mining camp can be...the Carrillos’ shop, which was brimming with Las Choyas geodes. When asked where the geodes came from |
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