Spessartine
Query URLs
https://term.museum-digital.de/md-de/tag/59418
- Note
- Spessartine is a nesosilicate, manganese aluminium garnet species, Mn2+3Al2(SiO4)3. This mineral is sometimes mistakenly referred to as spessartite.
Spessartine´s name is a derivative of Spessart in Bavaria, Germany, the type locality of the mineral. It occurs most often in granite pegmatite and allied rock types and in certain low-grade metamorphic phyllites. Sources include Australia, Myanmar, India, Afghanistan, Israel, Madagascar, Namibia, Nigeria, Mozambique, Tanzania and the United States. Spessartine of an orange-yellow has been called Mandarin garnet and is found in Madagascar. Violet-red spessartines are found in rhyolites in Colorado and Maine. In Madagascar, spessartines are exploited either in their bedrock or in alluvium. The orange garnets result from sodium-rich pegmatites. Spessartines are found in bedrock in the highlands in the Sahatany valley. Those in alluvium are generally found in southern Madagascar or in the Maevatanana region.[10][11]
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Spessartin, sztilpnomelán, rodokrozit
Spessartin: barna tömegek. /...
Object information
Image: Herman Ottó Múzeum, Miskolc - CC BY-NC-SA -
Spessartin, rodonit, mn-oxid
Barnás vagy narancssárga...
Object information
Image: Herman Ottó Múzeum, Miskolc - CC BY-NC-SA -
Spessartin, manganogrunerit
Spessartin: mm alatti, barna,...
Object information
Image: Herman Ottó Múzeum, Miskolc - CC BY-NC-SA -
Spessartin
Barna, tömött halmaz...
Object information
Image: Herman Ottó Múzeum, Miskolc - CC BY-NC-SA -
Spessartin-almandin
Max. 5 mm átmérőjű, kerek,...
Object information
Image: Herman Ottó Múzeum, Miskolc - CC BY-NC-SA
References
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