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pyromorphite
[ pahy-ruh-mawr-fahyt ]
noun
- a mineral, lead chlorophosphate, Pb 5 P 3 O 1 2 Cl, occurring in crystalline and massive forms, and of a green, yellow, or brown color; green lead ore: a minor ore of lead.
pyromorphite
/ ËŒ±è²¹Éª°ùəʊˈ³¾É”Ë´Ú²¹Éª³Ù /
noun
- a green, yellow, brown, or grey secondary mineral that consists of lead chloro-phosphate in the form of hexagonal crystals. Formula: Pb 5 Cl(PO 4 ) 3
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˜yÐÄvlog History and Origins
Origin of pyromorphite1
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˜yÐÄvlog History and Origins
Origin of pyromorphite1
C19: from German Pyromorphit, from pyro- + Greek ³¾´Ç°ù±è³óŧ form + -ite 1, an allusion to the fact that it assumes a crystalline form when heated
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Example Sentences
Examples have not been reviewed.
Descloizite occurs in veins of lead ores in association with pyromorphite, vanadinite, wulfenite, &c.
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For the assay of pyromorphite the following charge may be used:—Ore, 20 grams; "soda," 25 grams; tartar, 7 grams; and fluor spar, 5 grams; and 2 grams of borax as a cover.
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