Apatite is a mineral that is composed of calcium phosphate, with the chemical formula Ca5(PO4)3(OH,F,Cl). It is a member of the apatite group of minerals, which also includes hydroxylapatite and […]
Opals are a unique and mesmerizing gemstone known for their distinctive play of color, making them one of the most sought-after and mysterious gemstones in the world. In this introduction, […]
Malachite is a carbonate mineral with chemical composition of Cu2CO3(OH)2. Possibly the earliest ore of copper, malachite is believed to have been mined in the Sinai and eastern deserts of […]
Beryl is a mineral composed of beryllium aluminium cyclosilicate, with the chemical formula Be3Al2(Si6O18). It belongs to the cyclosilicate mineral group, which is characterized by its unique arrangement of silicate […]
Celestobarite is a rare mineral that belongs to the barite group. It is a compound composed of strontium sulfate (SrSO4) and barium sulfate (BaSO4), hence its name, which combines “celestine” […]
Amygdaloidal agate is a specific type of agate that forms within the voids or cavities of volcanic rocks. These voids, often created by gas bubbles in the lava, are called […]