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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 ?
The conceptual study will include mine development, infrastructure, water management, metallurgical test support and upgrades to the existing concentrator to process tin ore that also contains copper and silver.
A four-man operation can fetch 30 kilograms of tin ore on a good day, another sea miner told.
Gaosong ore field is located in the northeastern Gejiu tin ore deposit and the northern Wuzishan anticlinorium.
Luster Industries Bhd's unit Linpower Resources Sdn Bhd has sealed a JV contract with Venturian Minerals Sdn Bhd to form a joint venture committee (JVC) to explore and carry out the mining of tin ore and any other minerals in Kemaman, Terengganu.
As I write this, I'm glancing at my most valued geological specimen, given to me by my father--a chunk of tin ore mined at Geevor, not far from the long-defunct Botallack mine depicted in the feature's opening photo, that I use as a paperweight.
The country stands out with its gold, tin ore, methane and hydro-electricity power potential as well as vast arable lands suitable for farming.
Congo's Eastern borderlands have some of the world's largest deposits of tin ore and coltan, which is used in electronic devices like mobile phones and video game consoles.
It is a fact that the smelters imported a record 59,539mt of foreign tin ore in 1994 (Mining Magazine 1994: 177).
Tin ore production volume by the end of June 2012 was 16,839 ton sn, while ore production from last year same period was 17,701 ton sn or 5% lower.
It was not immediately clear what the plane was carrying to Walikale, but the airstrip is often used to export cassiterite, a tin ore, out of Democratic Republic of Congo's bush.
As part of the scoping study, and based on the SEMF estimates, indicative project net cash flows before tax for a range of tin ore prices have been developed in-house and are shown in Table 1 below.
The collapse of two elevators at a tin ore mine in central China has claimed the lives of 26 miners, in the latest fatal accident to hit China's mining industry.