Onyx
Onyx is a type of chalcedony, which is a microcrystalline form of quartz. It is a banded variety of chalcedony that forms in concentric layers of different colors. Onyx typically […]
Entries by CAI ICIA
Andalusite
Andalusite is a mineral that holds significant importance due to its unique crystal structure, distinctive physical properties, and its utilization in various industrial applications. It belongs to the aluminosilicate mineral […]
Diopside
Aliabad, Hunza Valley, Gilgit District, Gilgit-Baltistan (Northern Areas), Pakistan Diopside is a member of pyroxene group mineral with formula is MgCaSi2O6. Specimens can be colorless but are more often bottle […]
Sapphire
Sapphire is a precious gemstone that is a variety of the mineral corundum, which is composed of aluminum oxide. It is typically blue in color, but can also be found […]
Spinel
Spinel is a mineral that belongs to the group of oxides and forms in various colors, making it a popular gemstone. Its chemical composition is magnesium aluminum oxide (MgAl2O4). Spinel […]
Kyanite
Kyanite is a mineral composed of aluminum silicate, and it belongs to the family of aluminosilicate minerals. Its chemical formula is Al2SiO5. Kyanite typically forms bladed crystals, and its name […]
Rutile
Rutile is a mineral composed primarily of titanium dioxide (TiO2). It is one of the three main minerals of titanium, along with ilmenite and leucoxene. Rutile is commonly found in […]
Ruby
Ruby is a gemstone and a variety of the mineral corundum (Al2O3) that is distinguished by its red color, which is caused by trace amounts of chromium in the crystal […]
Tourmaline
Tourmaline is a fascinating gemstone that is known for its wide range of colors and unique properties. It is a crystalline mineral composed of complex borosilicate compounds and belongs to […]
Azurite
Azurite is a mineral that is commonly found in the oxidized zones of copper ore deposits. It is renowned for its vibrant blue color and has been used for various […]
Boji Stones (Shaman Stones)
Boji Stones, also known as Moqui Marbles or Shaman Stones, are small, round, naturally occurring stones found in the Navajo Sandstone formation of Utah and the surrounding areas. These stones […]
Spodumene
Crystal of bicolor spodumene var. kunzite Kunzite-Nouristan Spodumene Spodumene is a pyroxene member of inosilicate mineral with chemical formula is LiAl(SiO3)2, lithium aluminium. It can also be pink, lilac, or […]