Minerals
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A mineral is a naturally occurring chemical compound usually of crystalline form and not produced by life processes. A mineral has one specific chemical composition, whereas a rock can be an aggregate of different minerals or mineraloids. The study of minerals is called mineralogy. To meet the definition of “mineral” used by most geologists, a substance must meet five requirements:
Andesine
Andesine is a silicate mineral, a member of the plagioclase feldspar group. Plagioclase feldspars are a series of minerals that form a continuous series...
Antimony
Antimony usually occurs in massive, leafy or granular form. It has a flaky texture that makes it shiny, silvery, bluish white and brittle. It occurs in rare, usually massive, leafy or granular form.
Childrenite
Childrenite is a relatively rare mineral that is composed of basic iron aluminum phosphate. It belongs to the phosphate mineral group and is often...
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...
Hiddenite
Hiddenite is a fascinating gemstone that belongs to the mineral family of spodumene. It is a green variety of spodumene and is named after...
Beryl
Beryl is a member of cyclosilicate minerals with composed of beryllium aluminium. Chemical formula: Be3Al2Si6O18. Few people have ever heard of the mineral beryl but almost everyone has heard of its principal gemstone varieties emerald and aquamarine.
Scheelite
Scheelite is a calcium tungstate mineral that is commonly found in various geological environments. It is an important ore of tungsten, which is a...
Banded Amethyst
Banded Amethyst is a specific variety of amethyst, which is a violet to purple variety of quartz. What sets Banded Amethyst apart is its...
Sodalite
Sodalite is a feldspathoidal tectosilicate mineral that is rich royal blue widely used as an ornamental gemstone. Chemical formula is Na8 (Al6Si6O24) Cl2. Specimens can be blue, gray, pink, colorless, or other pale shades. They sometimes fluoresce bright orange under ultraviolet light. Sodalite nearly always forms massive aggregates or disseminated grains.
Galena
Galena, a mineral of both historical and geological significance, is a lead sulfide mineral with the chemical formula PbS. It stands out with its...
Chicken-Blood Stone
Chicken-Blood Stone, also known as "Ji Xue Shi" in Chinese, is a unique and highly prized gemstone that holds cultural and aesthetic significance, particularly...
Sericite
Sericite is a type of mineral that belongs to the mica group. It is a fine-grained, muscovite mica with a silky luster and is...
