Rocks

Llanite is a rare type of igneous rock that is primarily composed of blue quartz, potassium feldspar (orthoclase), and biotite mica. It is known...

Lamprophyre is ultrapotassic igneous rock that is occurring as dikes, lopoliths, loccoliths, stocks and small intrussion. It is alkaline silica-undersaturated mafic or ultramafic rocks...

Chalk is a soft, white, highly porous biochemical sedimentary rock composed almost entirely of calcite (CaCO₃) derived from the remains of coccolithophores, microscopic marine...

Coal is a non-clastic sedimentary rock. They are the fossilized remains of plants and are in flammable black and brownish-black tones. Its main element...

Marl or the other name Marlstone is a calcium carbonate non-clastic sedimentary rock. It has containt variable of clays and silt. The dominant carbonate...

Granodiorite  is a phaneritic-textured intrusive igneous rock similar to granite, but containing more plagioclase feldspar than orthoclase feldspar. According to the QAPF diagram, granodiorite has a greater than 20% quartz by volume, and between 65% to 90% of the feldspar is plagioclase. A greater amount of plagioclase would designate the rock as tonalite.

Indigo Gabbro, also known as Mystic Merlinite, is a crystal that belongs to the igneous rock family. It is a unique and visually striking...

Marston Marble is a unique and highly ornamental type of fossiliferous limestone, valued for its artistic and aesthetic qualities. It is characterized by very...

Chrysanthemum stone is a unique and captivating mineral with a rich history, valued for its striking appearance and intricate patterns. This stone is not...

Skarn is coarse-grained metamorphic rocks that forms by a metasomatism. Also called tactites. Skarn tend to be rich in calcium-magnesium-iron-manganese-aluminium silicate minerals that also...

Syenite, any of a category of intrusive igneous rocks basically composed of an alkali feldspar and a ferromagnesian mineral. A unique group of alkali syenites is characterized by the presence of a feldspathoid mineral inclusive of nepheline, leucite, cancrinite, or sodalite (see nepheline syenite). Chemically, syenites comprise a slight amount of silica, incredibly big amounts of alkalies, and alumina. The call become first used by Pliny the Elder.

Evaporites are a type of sedimentary rock that forms through the evaporation of water, leaving behind dissolved minerals and salts. These rocks typically consist...