The main component of cassiterite is tin oxide, which is an oxide mineral, often containing trace elements such as iron, niob, tantalu, titanium and manganese. Cassiterite is a tetragonal crystal system. The crystals are often short columnar, slender columnar or double cone-shaped, and the conical aggregates are block, granular or kidney-shaped; with diamond luster to […]
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The main component of rutile is titanium oxide, which belongs to the oxide minerals, to je, it is a homogeneous and multi-image variant with anatase and brookite, and constitutes the rutile family. Rutile belongs to the tetragonal crystal system, the crystals are columnar, biconical or needle-shaped; they have diamond luster to semi-metallic luster, transparent to […]
Apatite is a calcium phosphate mineral with complex chemical composition, often containing cerium, uranium, thorium and rare earth elements. According to the different additional anions, it is divided into fluorapatite, chloroapatite, hydroxyapatite and There are many varieties of strontium apatite and so on. They have a similar relationship with each other, and fluorapatite is usually […]
Kyanite, whose English name is Kyanite, is derived from the Greek Kyanos, což znamená “modrý”. Má také jiný anglický název, Kisthene, which also comes from Greek, což znamená “double” a “pevnost”. It refers to different hardness. It shows one of the biggest characteristics of kyanite, to je, the product is in different directions on […]
Iolite, whose English name is Iolite, comes from the Greek word, význam “fialový”, indicating the gem-level color characteristics. It also has several English names, one of which is Cordierite, named after the French geologist who first described the mineral in the 19th century, Pierre Louis Dental Die (PLCordier); the second, Dichroite, also from In Greek, […]
Hemimorphite is a silicate mineral with zinc as the main component. Obsahuje 53.7% zinc and sometimes contains a small amount of aluminum and iron. It is an important mineral of metallic zinc, and only a few colorless and transparent crystals are used as gems. Hemimorphite belongs to the orthorhombic crystal system, and the crystals […]
Pyrite, the English name Pyrite, comes from Greek and means “spark”, because this mineral emits sparks when hit by hard objects such as steel. Because the surface of pyrite is yellow-brown, it has a strong metallic luster on the crystal surface or polished surface, and is often mistaken for gold, tak se také říká […]
The staurolite is a hydrous silicate mineral of aluminum and iron. It belongs to the monoclinic or pseudorhombic crystal system. The crystals are well developed and are short columnar. They usually have a cross with an angle of 90° or an X with an angle of 60°. Shape through the double crystal. The staurolite has […]
Epidot je druh hydratovaného hlinitokřemičitanu vápenatého s ostrůvkovou strukturou. Protože jeho složení často obsahuje různé stopové prvky jako je mangan, hořčík, chrom, sodík a draslík, existuje mnoho druhů podobných náhražek, jako je Je bohatý na mangan jako monedrit, chrom je obsažen v chromovém epidotu, and calcium is replaced by […]
Olovnatý důl na molybden, anglický název Wulfenite, je pojmenována po rakouském mineralogovi Franzi Wulfenovi (F.X.Wulfen, 1728-1805). molybdenit, také nazývaný barevný molybden, je minerál molybdenan olovnatý, patřící do tetragonální krystalové soustavy, a krystaly mají tvar čtyřúhelníkových desek. Má mastný lesk až diamantový lesk, průhledné až průsvitné, a […]