Ruby in Fuchsite
Corundum (var. Ruby) in Muscovite (var. Fuchsite) · Mineral Specimen / Decorative Stone
Crystal System
Trigonal (Ruby) and Monoclinic (Fuchsite). Typically found as massive aggregate rocks.
Mineral Group
Oxides (Ruby) / Silicates (Phyllosilicates - Mica group for Fuchsite)
Chemical Formula
Al2O3 : Cr (Ruby) / K(Al,Cr)2(AlSi3O10)(OH)2 (Fuchsite)
Formation Process
Metamorphic. Usually forms in regional metamorphic rocks where aluminum-rich corundum crystals grow within chromium-rich muscovite mica.
About This Crystal
A polished tumble/standing stone showing opaque, pinkish-red Ruby hexagons or spots embedded in a light sea-green Fuchsite matrix. Luster is vitreous on the rubies and pearly to silky on the fuchsite.
Physical Characteristics
Color: Pink-red on Green. Streak: White. Specific Gravity: Variable (approx 2.8 - 3.4). Ruby inclusions often show a typical hexagonal habit.
Optical Properties
Sub-adamantine to vitreous luster for ruby; pearly for fuchsite. Rubies show strong red fluorescence under long-wave UV light due to chromium content.
Hardness & Durability
Origin Region
Primarily Southern India and Madagascar. Forms in metamorphic schist environments.
Hardness & Durability
Mixed hardness: Ruby is Mohs 9; Fuchsite is Mohs 2-3. This makes the stone difficult to polish evenly and susceptible to scratching in softer areas.
Care & Maintenance
Avoid ultrasonic cleaners and harsh chemicals. Clean with warm soapy water and a soft cloth. Store separately to prevent the soft Fuchsite from scratching.
Rarity & Value
Relatively common. Value is determined by the brightness of the green and the quantity/color of the ruby inclusions. Usually affordable as decorative items.
Special Characteristics
Strong red fluorescence in the ruby spots. Occasional presence of kyanite rims (blue) around rubies in some specimens (though not visible here).
Lore & History
Historically associated with the heart chakra (green) and root chakra (red). Symbolically used for balancing passion with emotional stability. Not used in ancient jewelry as much as modern lapidary arts.