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A light yellow, red-brown, or black mineral, SnO2, that is an important tin ore. Also called tinstone.

[French cassitérite, from Greek kassiteros, tin.]


(Minerals) a black or brown mineral, found in igneous rocks and hydrothermal veins. It is a source of tin. Composition: tin oxide. Formula: SnO2. Crystal structure: tetragonal. Also called: tinstone
[C19: from Greek kassiteros tin]


(kəˈsɪt əˌraɪt)

a brown or black mineral, tin dioxide, SnO2, usu. found as fibrous masses or placer deposits; the chief ore of tin.
[1855–60; < Greek kassíter(os) tin + -ite1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cassiterite - a hard heavy dark mineral that is the chief source of tin
atomic number 50, Sn, tin - a silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
References in periodicals archive ?
With sensor-based ore sorting rejecting particles containing very fine cassiterite that is too small to be detected by the XRT-system, the increased grade and size of the mineralization has improved the plant's performance.
The intensity of other peaks is small; it indicates that our films are textured, it is indicate that the change of predominant orientation of crystallites, confirms the cassiterite structure of crystalline Sn[O.
Fortune Mojapelo, CEO of Bushveld Minerals, said: "The encouraging metallurgical results achieved support our view that high-grade cassiterite concentrates can be produced from the Groenfontein Deposit with relatively good recoveries.
2014): The role of cassiterite controlling arsenic mobility in an abandoned stanniferous tailings impoundment at Llallagua, Bolivia.
The company's Green Compliance Service Center in Asia actively surveys suppliers to determine whether any Conflict Minerals (columbite-tantalite [coltan]; cassiterite [tin]; gold; wolframite [tungsten]; or their derivatives) used to make product components were procured from "covered countries" such as Angola, Burundi and Rwanda.
John Bradshaw, Coast-to-Coast Rare Stones International, Nashua, New Hampshire, USA, for 21 bags containing part-cut crystals of: apatite (Canada and Mexico), cassiterite (Namibia), celestine (Kansas, USA), cerrusite (Namibia), crocoite (Tasmania, Australia), diaspore (Turkey), oligoclase (Kenya), pollucite (Conneticut, USA), scheelite (Pakistan and Arizona, USA), smithsonite (Namibia), sphalerite (Spain), tourmaline (Maine, USA, and Afghanistan), tugtupite (Greenland), willemite/leucophoenicite (New Jersey, USA) and zincite on calcite (New Jersey); and also for 95 faceted mixed-shape tourmalines, mostly pink, green and blue.
The heavy mineral concentrates mainly consist of Fe-Ti oxides--rutile and ilmenite, widespread cassiterite, wolframite and scheelite.
The ore pockets are globular or even irregular bodies tens of centimetres in size, with a very high proportion of cassiterite.
The minerals in question--coltan, a source of tantalum; cassiterite, a tin oxide ore; wolframite, which produces tungsten; and gold ores are often extracted under conditions that breach basic human rights using slave labour and child labour.
Four minerals have been targeted - coltan, a source of tantalum; cassiterite, a tin oxide ore; wolframite, which produces tungsten; and gold ores.
For this reaction, the solids obtained through the method of controlling precipitation, (Romarchite (SnO), Cassiterite (Sn[O.
Minerals such as cassiterite, coltan and wolfram are a growing part of Rwanda's economy, partly due to ongoing reforms and substantial investments in the sector--Rwanda invested $46.