User contributions for Cornish semiconductor

21:1921:19, 21 June 2026 diff hist +89 Pyrite No edit summary
21:1621:16, 21 June 2026 diff hist +36 Pyrite No edit summary
21:1521:15, 21 June 2026 diff hist −7 Pyrite No edit summary
21:1421:14, 21 June 2026 diff hist +477 Pyrite No edit summary
16:0016:00, 21 June 2026 diff hist +77 Chalcopyrite No edit summary
15:5915:59, 21 June 2026 diff hist +859 N Chalcopyrite Created page with "* Lustre:Metallic * Transparency:Opaque * Colour:Brass yellow, often with an iridescent tarnish. * Streak:Greenish black * Hardness:3½ - 4 on Mohs scale * Tenacity:Brittle * Cleavage:Poor/Indistinct Indistinct on {011}, sometimes distinct. * Fracture:Irregular/Uneven [https://www.mindat.org/min-955.html Data from mindat.org] Chalcopyrite is the main ore of copper, is softer than pyrite and fairly easy to find in usable quantities. It's rarely well crystallised, but fo..."
15:5115:51, 21 June 2026 diff hist +17 List of minerals tested No edit summary
15:5115:51, 21 June 2026 diff hist −8 Finding your own semiconductors →What to look for
15:5015:50, 21 June 2026 diff hist +56 Finding your own semiconductors →What to look for
15:4815:48, 21 June 2026 diff hist +106 Finding your own semiconductors →Safety
15:4615:46, 21 June 2026 diff hist +1,441 Finding your own semiconductors →Safety
15:3515:35, 21 June 2026 diff hist +246 Finding your own semiconductors →What to look for
15:2615:26, 21 June 2026 diff hist +462 Finding your own semiconductors →What to look for
15:2115:21, 21 June 2026 diff hist +355 Finding your own semiconductors →What to look for
15:1915:19, 21 June 2026 diff hist +1 List of minerals tested No edit summary
15:1915:19, 21 June 2026 diff hist +17 List of minerals tested No edit summary
15:1615:16, 21 June 2026 diff hist +300 Finding your own semiconductors →What to look for
15:1415:14, 21 June 2026 diff hist +341 Finding your own semiconductors No edit summary
15:1015:10, 21 June 2026 diff hist +528 Finding your own semiconductors No edit summary
15:0615:06, 21 June 2026 diff hist +811 Finding your own semiconductors No edit summary
14:5714:57, 21 June 2026 diff hist 0 N File:Cut-s.jpg No edit summary current
14:5414:54, 21 June 2026 diff hist +32 List of minerals tested No edit summary
14:5414:54, 21 June 2026 diff hist +50 N Finding your own semiconductors Created page with "=How to find semiconductors in Cornish mine waste="
14:5314:53, 21 June 2026 diff hist +50 Natural semiconductors →Natural vs factory grown semiconductors
14:5014:50, 21 June 2026 diff hist +273 List of minerals tested No edit summary
14:4014:40, 21 June 2026 diff hist −1 Galena No edit summary
14:3914:39, 21 June 2026 diff hist +1 Pyrite No edit summary
14:3914:39, 21 June 2026 diff hist +190 Pyrite No edit summary
14:3714:37, 21 June 2026 diff hist +759 N Galena Created page with "* Lustre:Metallic, Sub-Metallic, Dull * Transparency:Opaque * Colour:Lead-grey * Streak:Lead-grey * Hardness:2½ on Mohs scale * Tenacity:Brittle * Cleavage:Perfect {001} * Parting:{111} * Fracture:Sub-Conchoidal [https://www.mindat.org/min-1641.html Data from mindat.org]] The "OG" semiconducting mineral from the early days of radio, galena was chosen as it was the best material for converting radio frequencies into audible signals, by removin..."
14:3114:31, 21 June 2026 diff hist 0 Pyrite No edit summary
14:3114:31, 21 June 2026 diff hist +12 Pyrite No edit summary
14:3114:31, 21 June 2026 diff hist +500 N Pyrite Created page with "* Lustre:Metallic * Transparency:Opaque * Colour:Pale brass-yellow * Streak:Greenish-black * Hardness:6 - 6½ on Mohs scale * Tenacity:Brittle * Cleavage:Poor/Indistinct Indistinct on {001}. * Fracture:Irregular/Uneven, Conchoidal https://www.mindat.org/min-3314.html pyrite page on mindat One of the most common semiconducting minerals, pyrite exhibits high conductivity and easily provides a voltage drop - often in both polarities equally, rectification is harder to..."
14:2714:27, 21 June 2026 diff hist +146 List of minerals tested No edit summary
14:2514:25, 21 June 2026 diff hist +3 List of minerals tested →Pyrite
14:2414:24, 21 June 2026 diff hist +6 Natural semiconductors No edit summary
12:5212:52, 21 June 2026 diff hist 0 Cat's whisker setups No edit summary current
12:5212:52, 21 June 2026 diff hist +96 Cat's whisker setups No edit summary
12:4612:46, 21 June 2026 diff hist +202 Historical cat's whisker designs No edit summary current
11:3911:39, 21 June 2026 diff hist 0 N File:Vertical.jpg No edit summary current
09:1309:13, 21 June 2026 diff hist +178 Historical cat's whisker designs →Historical variants found on ebay listings
09:1109:11, 21 June 2026 diff hist −5 Historical cat's whisker designs No edit summary
09:1109:11, 21 June 2026 diff hist +7 Historical cat's whisker designs No edit summary
09:1009:10, 21 June 2026 diff hist 0 Historical cat's whisker designs No edit summary
09:0909:09, 21 June 2026 diff hist +472 Historical cat's whisker designs No edit summary
09:0109:01, 21 June 2026 diff hist +3,271 Historical cat's whisker designs No edit summary
08:0708:07, 21 June 2026 diff hist 0 N File:Marconi2.webp No edit summary current
08:0608:06, 21 June 2026 diff hist 0 N File:Marconi.webp No edit summary current
08:0508:05, 21 June 2026 diff hist 0 N File:Multi.webp No edit summary current
08:0508:05, 21 June 2026 diff hist 0 N File:ArmType.webp No edit summary current
08:0208:02, 21 June 2026 diff hist 0 N File:Double.jpg No edit summary current

21 June 2026