Where is Ruby in Fuchsite found?
Ruby (Corundum) in Fuchsite (Chromian Muscovite)
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Open the appRuby in Fuchsite occurs in specific geological environments. Knowing where to look, and in what kind of rock, is the difference between going home empty-handed and finding a great specimen.
Where to find Ruby in Fuchsite
India
Significant deposits are found in the Karnataka and Andhra Pradesh states, particularly in areas with ancient metamorphic belts.
Pakistan
Occurrences are noted in the tribal areas, often associated with ophiolitic complexes.
Brazil
Deposits have been found in various states, including Bahia and Minas Gerais, within metamorphic rock formations.
Russia
Reported from certain Ural Mountains localities.
Norway
Some occurrences are known in metamorphic terranes.
Collecting tips
- Geological Context. Focus on areas known for regional or contact metamorphism of chromium-rich mafic or ultramafic rocks. Look for greenschist or amphibolite facies metamorphic terranes.
- Visual Identification. Search for rocks exhibiting a distinct contrast between red, often hexagonal, crystals and a shimmering green micaceous matrix. The green color of fuchsite is a key indicator of chromium presence.
- Hardness Test. Ruby (Corundum) is very hard (9 on Mohs scale), while fuchsite (Muscovite) is much softer (2.5-3). This difference can be felt when handling or attempting to scratch the different components.
- Associated Minerals. Look for other metamorphic minerals like kyanite, margarite, or rutile, which can be found in similar geological settings.
Quick Check
- Color:
- Red (ruby) and green (fuchsite)
- Luster:
- Ruby: sub-adamantine to vitreous; Fuchsite: pearly to vitreous
- Streak:
- Ruby: white; Fuchsite: white
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