Crocoite is a mineral consisting of lead chromate, PbCrO4, and crystallizing in the monoclinic crystal system. It is identical in composition with the...
9 KB (754 words) - 05:38, 3 February 2024
solid that is very poorly soluble in water. It occurs also as the mineral crocoite. It is used as a pigment. Two polymorphs of lead chromate are known, orthorhombic...
11 KB (967 words) - 04:04, 6 September 2024
Louis Nicolas Vauquelin received samples of crocoite ore. He produced chromium trioxide (CrO3) by mixing crocoite with hydrochloric acid. In 1797, Vauquelin...
109 KB (11,825 words) - 23:25, 21 August 2024
Leatherwood (unofficial) (Eucryphia lucida) Colour(s) Bottle Green (PMS 342), Yellow (PMS 114), & Maroon (PMS 194) Mineral Crocoite (PbCrO4) Website tas.gov.au...
184 KB (15,529 words) - 14:54, 29 August 2024
Sapphire (var.) Padparadscha Golden sheen sapphire Covellite Creedite Crocoite Cryolite Cumberlandite Cuprite Danburite Datolite Descloizite Diamond Bort...
13 KB (867 words) - 01:34, 24 August 2024
orange. In 1797 a French scientist Louis Vauquelin discovered the mineral crocoite, or lead chromate, which led in 1809 to the invention of the synthetic...
66 KB (7,762 words) - 18:09, 4 September 2024
Cornwallite Corundum Cotunnite Covellite Coyoteite Creedite Cristobalite Crocoite Cronstedtite Crookesite Crossite (not approved by IMA) Cryolite Cryptomelane...
42 KB (2,782 words) - 11:49, 1 September 2024
obtained directly from the liquor. Chromate containing minerals are rare. Crocoite, PbCrO4, which can occur as spectacular long red crystals, is the most...
13 KB (1,230 words) - 08:43, 4 July 2024
S.; de Pieri, R. "A three-dimensional refinement of the structure of crocoite, PbCrO4" Acta Crystallographica 1965, volume 19, pp. 287–289. Clavier,...
19 KB (1,970 words) - 00:51, 29 August 2024
mineral was crocoite with a formula of PbCrO4. Studying the mineral in 1797, Louis Nicolas Vauquelin produced chromium trioxide by mixing crocoite with hydrochloric...
18 KB (1,947 words) - 03:07, 16 May 2024
– Coucy Volume 7.6: Coucy-le-Château – Crocodile Volume 7.7: Crocoite – Cuba Volume 7.8: Cube – Daguerre, Louis Volume 7.9: Dagupan...
45 KB (2,772 words) - 21:17, 5 September 2024
generally produced through human activity and rarely seen in nature (as in crocoite), and is a highly toxic carcinogen that may kill animals and humans if...
28 KB (3,017 words) - 16:28, 20 August 2024
"Four monazite type structures: comparison of SrCrO 4 , SrSeO 4 , PbCrO 4 (crocoite), and PbSeO 4". Zeitschrift für Kristallographie. 176 (1–2): 75–83. Bibcode:1986ZK...
4 KB (244 words) - 15:16, 18 May 2024
pigments. Chrome yellow (lead chromate, PbCrO 4), derived from the mineral crocoite, was used by artists in the earlier part of the 19th century, but has been...
93 KB (10,799 words) - 13:32, 4 September 2024
cassedanneite (1988), crocoite (1766), pyrophyllite (1829), phenicochroite (1839), embreyite (1972). The discovery of crocoite by Johann Gottlob Lehmann...
2 KB (215 words) - 15:33, 24 July 2024
occurs as the mineral greenockite. Chromium pigments Chrome yellow or crocoite (PY34): lead chromate (PbCrO4). Cobalt pigments Aureolin or cobalt yellow...
9 KB (909 words) - 06:18, 19 August 2024
rumbling in the distance. Several unusual minerals are known from Tasmania: crocoite, stichtite, ferroaxinite from Dundas, sellaite, chondrodite, norbergite...
80 KB (11,155 words) - 08:47, 14 July 2024
pyromorphite and crocoite. To the north follows a 10 centimeter wide band of white, powdery mylonite very rich in pyromorphite and crocoite. Next comes a...
8 KB (1,114 words) - 22:35, 12 July 2023
French chemist Louis Nicolas Vauquelin. Vauquelin was studying the mineral crocoite, a natural form of lead chromate, when he identified the presence of a...
10 KB (1,124 words) - 23:18, 11 July 2024
Hexavalent chromium occurs only rarely in nature, an exception being crocoite (PbCrO4). It is however produced on a large scale industrially. Virtually...
66 KB (7,080 words) - 19:04, 5 September 2024
formerly applied to a chromium-bearing mimetite, or possibly a mixture of crocoite, mimetite and quartz, which forms attractive orange red crystals, but has...
6 KB (480 words) - 20:38, 17 January 2024
occurring in the oxidized zone of lead ore deposits. It commonly overgrows crocoite. It may also be overgrown by yellow cerussite. It may be associated with...
4 KB (210 words) - 02:05, 11 September 2023
gastronomy, and the mineral vauquelinite, discovered at the same mine as the crocoite from which Vauquelin isolated chromium. Biographical Index of Former Fellows...
8 KB (832 words) - 23:27, 21 August 2024
1797 N. Vauquelin 1798 N. Vauquelin Vauquelin analysed the composition of crocoite ore in 1797, and later isolated the metal by heating the oxide in a charcoal...
131 KB (4,821 words) - 03:42, 30 August 2024
Calamaite Clm Cassagnaite Csg Chestermanite Csm Clinojimthompsonite Cjim Crocoite Crc Calaverite Clv Cassedanneite Cda Chevkinite-(Ce) Cvk-Ce Clinokurchatovite...
180 KB (418 words) - 05:15, 30 June 2024
Without additional anions: 05 Tarapacaite, 10 Chromatite, 15 Hashemite, 20 Crocoite 07.FB With additional O, V, S, Cl: 05 Phoenicochroite, 10 Santanaite, 15...
14 KB (1,458 words) - 15:20, 21 March 2024
fidelitas Fertility and Faithfulness Bottle green, yellow and maroon Crocoite - Tasmanian tartan Symbols of Tasmania Victoria Coat of arms of Victoria...
14 KB (320 words) - 07:17, 20 May 2024
Centre features examples of Tasmania's mineral emblem, the valuable crystal crocoite, as well as other geological specimens and historic mining artefacts. The...
23 KB (2,310 words) - 22:31, 1 July 2024
the baryte group of minerals. Hashemite is stoichiometrically similar to crocoite and chromatite. Hashemite is orthorhombic, with space group Pnma. I was...
2 KB (145 words) - 10:20, 26 November 2022