Cassiterite - Revision history

Cornish semiconductor at 10:14, 1 July 2026

2026-07-01T10:14:08Z

← Older revision		Revision as of 10:14, 1 July 2026
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	* Fracture:Irregular/Uneven, Sub-Conchoidal		* Fracture:Irregular/Uneven, Sub-Conchoidal

	[https://www.mindat.org~~/min-3314.html~~ Data from mindat]		[https://www.mindat.org Data from mindat.org]

	Cassiterite is the principle ore of tin, and has a special place in the history of Cornwall, as it was this mineral that was traded with the Pheonicians. Evidence is scant as they kept their sources secret, saying it came from mythical islands called the "Cassiterides". At the time it was thought that it was so abundant you could scoop it out of the bed of the Carnon river in vast quantities. Today it is much harder to find, but the best method is simply by weight, as its mass is 6 times heavier than water.		Cassiterite is the principle ore of tin, and has a special place in the history of Cornwall, as it was this mineral that was traded with the Pheonicians. Evidence is scant as they kept their sources secret, saying it came from mythical islands called the "Cassiterides". At the time it was thought that it was so abundant you could scoop it out of the bed of the Carnon river in vast quantities. Today it is much harder to find, but the best method is simply by weight, as its mass is 6 times heavier than water.

Cornish semiconductor at 08:34, 1 July 2026

2026-07-01T08:34:41Z

← Older revision		Revision as of 08:34, 1 July 2026
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			[[File:Cassiterite.jpg\|thumb\|right\|frame\|Cassiterite crystal from Wheal Unity Wood, Chacewater]]
	[[File:Cassitterite-wheal-unity-wood.png\|right\|frame\|Curve trace for Cassiterite from Wheal Unity Wood]]		[[File:Cassitterite-wheal-unity-wood.png\|right\|frame\|Curve trace for Cassiterite from Wheal Unity Wood]]

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	Cassiterite is the principle ore of tin, and has a special place in the history of Cornwall, as it was this mineral that was traded with the Pheonicians. Evidence is scant as they kept their sources secret, saying it came from mythical islands called the "Cassiterides". At the time it was thought that it was so abundant you could scoop it out of the bed of the Carnon river in vast quantities. Today it is much harder to find, but the best method is simply by weight, as its mass is 6 times heavier than water.		Cassiterite is the principle ore of tin, and has a special place in the history of Cornwall, as it was this mineral that was traded with the Pheonicians. Evidence is scant as they kept their sources secret, saying it came from mythical islands called the "Cassiterides". At the time it was thought that it was so abundant you could scoop it out of the bed of the Carnon river in vast quantities. Today it is much harder to find, but the best method is simply by weight, as its mass is 6 times heavier than water.

	In the few samples I have tried it has an extremely high overall resistance, but provides good semiconducting junctions. I used the sample that provided this curve trace in the first performance I did.		In the few samples I have tried it has an extremely high overall resistance, but provides good semiconducting junctions. I used the sample that provided this curve trace in the first performance I did.

	===Pages ~~linking here~~===		===Pages mentioning cassiterite===

	{{Special:WhatLinksHere/Cassiterite}}		{{Special:WhatLinksHere/Cassiterite}}

Cornish semiconductor at 14:33, 28 June 2026

2026-06-28T14:33:32Z

← Older revision		Revision as of 14:33, 28 June 2026
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	===Pages linking here===		===Pages linking here===

	{{Special:WhatLinksHere/~~Arsenopyrite~~}}		{{Special:WhatLinksHere/Cassiterite}}

Cornish semiconductor: Created page with "Curve trace for Cassiterite from Wheal Unity Wood * Lustre:Adamantine, Greasy, Sub-Metallic * Transparency:Transparent, Translucent, Opaque * Colour:Black, yellow, brown, red, white, colourless. * Streak:Brownish white, white, greyish * Hardness:6 - 7 on Mohs scale * Tenacity:Brittle * Cleavage:Imperfect/Fair {100} imperfect, {110} indistinct. * Parting:More or less distinct on {111} or {011}. * Fracture:Irregular/U..."

2026-06-28T14:32:59Z

Created page with "right|frame|Curve trace for Cassiterite from Wheal Unity Wood * Lustre:Adamantine, Greasy, Sub-Metallic * Transparency:Transparent, Translucent, Opaque * Colour:Black, yellow, brown, red, white, colourless. * Streak:Brownish white, white, greyish * Hardness:6 - 7 on Mohs scale * Tenacity:Brittle * Cleavage:Imperfect/Fair {100} imperfect, {110} indistinct. * Parting:More or less distinct on {111} or {011}. * Fracture:Irregular/U..."

New page

[[File:Cassitterite-wheal-unity-wood.png|right|frame|Curve trace for Cassiterite from Wheal Unity Wood]]

* Lustre:Adamantine, Greasy, Sub-Metallic
* Transparency:Transparent, Translucent, Opaque
* Colour:Black, yellow, brown, red, white, colourless.
* Streak:Brownish white, white, greyish
* Hardness:6 - 7 on Mohs scale
* Tenacity:Brittle
* Cleavage:Imperfect/Fair {100} imperfect, {110} indistinct.
* Parting:More or less distinct on {111} or {011}.
* Fracture:Irregular/Uneven, Sub-Conchoidal

[https://www.mindat.org/min-3314.html Data from mindat]

Cassiterite is the principle ore of tin, and has a special place in the history of Cornwall, as it was this mineral that was traded with the Pheonicians. Evidence is scant as they kept their sources secret, saying it came from mythical islands called the "Cassiterides". At the time it was thought that it was so abundant you could scoop it out of the bed of the Carnon river in vast quantities. Today it is much harder to find, but the best method is simply by weight, as its mass is 6 times heavier than water.

In the few samples I have tried it has an extremely high overall resistance, but provides good semiconducting junctions. I used the sample that provided this curve trace in the first performance I did.

===Pages linking here===

{{Special:WhatLinksHere/Arsenopyrite}}