The one of world Extremely Rare stone, Natural Grandidierite, fine quality facet grade stone Grandidierite is an extremely rare mineral and gem that was first discovered in 1902 in southern Madagascar. Mohs scale hardness: 7.5 Optical properties: Biaxial (-) Crystal system: OrthorhombicB Crystal class: Dipyramidal Refractive index: 1.583 – 1.639 Color: Bluish green
” Grandidierite ” Rare mineral Specimen, This is Orthorhombic crystal system, Nesosilicate mineral from Madagascar Grandidierite is an extremely rare mineral and gem that was first discovered in 1902 in southern Madagascar. The mineral was named in honor of French explorer Alfred Grandidier (1836–1912) who studied the natural history of Madagascar
Trigon Δ 😘 Fresh from the mineral ® 🇱🇰 CEYLON Natural spinel Crystal with trigon Dimension: 7.5 x 6.1 x 5.3 mm Location: city of gem Ratnapura, Sri Lanka Spinel is the magnesium–aluminum member of the larger spinel group of minerals with chemical formula MgAl₂O₄. Spinel is actually a large group of minerals. Gahnite, hercynite, […]
An interesting feature of Chrysoberyl crystals is the cyclic twins called trillings. ( sixling ). It can be found only one among millions of gemstones. This complete “sixling” crystal has been found from the city of gem Ratnapura, Sri Lanka Mining Type: Underground mining with tunnels Gem Deposit: Alluvial Gem Deposit Found: Danu Group Dimension: 12.5mm x 10mm x 5mm Type: Complete sixling Variety: Chrysoberyl Species: Chrysoberyl Complete Crystal This crystal is […]
A rare variety of natural sapphire, known as colour-change sapphire, exhibits different colours in a different light. Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminium-oxide with trace amounts of elements such as iron, titanium, chromium, copper, or magnesium. Sapphire deposits are found in Eastern Australia, Thailand, Sri Lanka, China, Vietnam, Madagascar, Greenland, East […]
This padparadscha sapphire rough stone is unearthed from Rakwana Mineral, Ratnapura, Sri Lanka yesterday. Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminium-oxide with trace amounts of elements such as iron, titanium, chromium, copper, or magnesium. Sapphire deposits are found in Eastern Australia, Thailand, Sri Lanka, China, Vietnam, Madagascar, Greenland, East Africa, and in North […]
