Chrysoprase
Chrysoprase is a gemstone variety of chalcedony, which is a form of quartz. It is known for its apple-green color, which comes from the presence of nickel in its composition. […]
Entries by CAI ICIA
Angelite
Angelite, also known as “blue anhydrite” or “angel stone,” is a mineral that belongs to the sulfate mineral group. It is a type of anhydrous calcium sulfate, meaning it contains […]
Pyrope Garnet
Pyrope garnet is a fascinating gemstone known for its stunning deep red color and remarkable beauty. It belongs to the garnet family, a group of minerals renowned for their diverse […]
Chrysanthemum Stone
Chrysanthemum stone is a unique and captivating mineral with a rich history, valued for its striking appearance and intricate patterns. This stone is not a true mineral in the geological […]
Hackmanite
Hackmanite is a rare and fascinating mineral that exhibits a unique phenomenon known as tenebrescence. Tenebrescence is the property of certain minerals to temporarily change color when exposed to ultraviolet […]
Rubellite
Rubellite is a captivating and highly prized gemstone that belongs to the tourmaline family. Renowned for its vibrant shades of pink to red, rubellite’s alluring coloration has earned it a […]
Moroccan Geodes
Moroccan geodes are hollow, spherical or oblong rock formations that contain sparkling crystals inside. These geodes are found in various regions of Morocco, particularly in the Atlas Mountains and surrounding […]
Cerussite
Cerussite is a mineral that belongs to the carbonate group. It is composed of lead carbonate (PbCO3) and has a relatively high lead content. The name “cerussite” is derived from […]
Bloodstone or Heliotrope
Bloodstone, also known as heliotrope, is a unique and distinctive gemstone that has captivated people for centuries. It is a form of chalcedony, a microcrystalline variety of quartz, and is […]
Banded Agate
Banded agate is a type of chalcedony quartz characterized by its unique banding patterns, which are formed by alternating layers of different colors and textures. These bands can vary in […]
Enstatite
Enstatite is a mineral that belongs to the pyroxene group, which is a class of silicate minerals. It is known for its unique crystalline structure and a range of physical […]
Pietersite
Pietersite is a unique and striking gemstone known for its captivating chatoyancy and vibrant color variations. It is a type of chalcedony, which is a variety of quartz, and is […]