
1) Halide mineral 2) Lead mineral
Found on
https://www.crosswordclues.com/clue/mendipite

Mendipite is a rare mineral that was named in 1939 for the locality where it is found, the Mendip Hills in Somerset, England. It is an oxide of lead, with chlorine, formula Pb3O2Cl2. ==Crystal structure== Most references assert that mendipite crystallises in the orthorhombic crystal system, disphenoidal class 2 2 2, meaning that it has three mutua...
Found on
http://en.wikipedia.org/wiki/Mendipite

Mendipite is a rare white, grey or colourless mineral with a high density but low relative hardness of 2.5 Mendipite is a halide of lead formed around volcanic vents and in hydrothermal veins. It is most commonly found in association with calcite, cerussite, malachite, manganite, pyrolusite and pyromorphite. Most deposits take the form of columnar ...
Found on
http://www.probertencyclopaedia.com/browse/HM.HTM

Lead oxychloride
Found on
http://www.translationdirectory.com/glossaries/glossary075.htm
No exact match found.