mineral
Ruby in Fuchsite
Corundum (Al2O3) in Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
AI-generated identification · may be incorrectHardness varies significantly between the minerals: Ruby (Corundum) is 9 on the Mohs scale, while Fuchsite is 2 to 2.5. Color is a striking combination of deep pinkish-red (ruby) and sparkling emerald green (fuchsite). Luster ranges from vitreous to pearly.…
Identified More mineral →
Explore Ruby in Fuchsite in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness varies significantly between the minerals: Ruby (Corundum) is 9 on the Mohs scale, while Fuchsite is 2 to 2.5. Color is a striking combination of deep pinkish-red (ruby) and sparkling emerald green (fuchsite). Luster ranges from vitreous to pearly. Crystal structure is trigonal for ruby and monoclinic for fuchsite.
Formation & geological history
Formed in metamorphic environments, specifically in greenschist to amphibolite facies rocks where chromium-rich solutions interact with aluminum-rich minerals under high pressure and temperature.
Uses & applications
Used primarily as a decorative gemstone, for ornamental carvings, and by crystal collectors due to its contrasting vibrant colors.
Geological facts
This specimen displays a combination of one of the hardest minerals known (ruby) alongside a soft, micaceous chromium-rich variety of muscovite (fuchsite). The distinctive red color of the ruby is caused by trace amounts of chromium.
Field identification & locations
Easily identified by the stark visual contrast of pink/red crystals embedded within a green, micaceous matrix. Commonly sourced from southern India.
More like this
Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Septarian Pebble
Septarian nodule / Concretion
sedimentary