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- Q1056829 subject Q6628002.
- Q1056829 subject Q7174305.
- Q1056829 subject Q7318447.
- Q1056829 subject Q8874484.
- Q1056829 abstract "Pinalite is a rare lead tungstate–chloride mineral with formula: Pb3WO5Cl2. Pinalite crystallizes in the orthorhombic crystal system. The orthorhombic system is described as having three crystallographic axes of unequal lengths, normally referred to as c (the longest axes), b (the second longest axes), and a (the smallest axes). These axes all have corresponding angles of 90 degrees. Pinalite belongs to the biaxial optical class, and is negative. The main difference between biaxial and axial crystals is that biaxial crystals have two optic axes.Pinalite's structure is significant in that it is one of a kind. It is therefore important in seeing how the structures in new lead oxyhalides (containing square pyramids incorporated into sheets) are arranged. Its structure contains an extra oxygen, which therefore has a very small amount of free space and consequently protrudes into neighboring layers. The oxygen then pushes aside the chlorine atoms, leaving almost no room for the lead to occupy. This is of interest to geologists for it is such a rare occurrence of structure seen only in pinalite and its barium analog. Therefore, it could be of use to structuralists to see how this mineral was formed. Experiments have been done, using lead oxyhalides, to see the reason and sequence of events in which this mineral is executed.".
- Q1056829 wikiPageWikiLink Q108200.
- Q1056829 wikiPageWikiLink Q1112.
- Q1056829 wikiPageWikiLink Q420117.
- Q1056829 wikiPageWikiLink Q58692.
- Q1056829 wikiPageWikiLink Q58712.
- Q1056829 wikiPageWikiLink Q602965.
- Q1056829 wikiPageWikiLink Q648961.
- Q1056829 wikiPageWikiLink Q6628002.
- Q1056829 wikiPageWikiLink Q708.
- Q1056829 wikiPageWikiLink Q7115734.
- Q1056829 wikiPageWikiLink Q7174305.
- Q1056829 wikiPageWikiLink Q7318447.
- Q1056829 wikiPageWikiLink Q7419959.
- Q1056829 wikiPageWikiLink Q7801342.
- Q1056829 wikiPageWikiLink Q816.
- Q1056829 wikiPageWikiLink Q8874484.
- Q1056829 wikiPageWikiLink Q898786.
- Q1056829 name "Pinalite".
- Q1056829 type ChemicalSubstance.
- Q1056829 type Mineral.
- Q1056829 type ChemicalObject.
- Q1056829 type Thing.
- Q1056829 type Q7946.
- Q1056829 comment "Pinalite is a rare lead tungstate–chloride mineral with formula: Pb3WO5Cl2. Pinalite crystallizes in the orthorhombic crystal system. The orthorhombic system is described as having three crystallographic axes of unequal lengths, normally referred to as c (the longest axes), b (the second longest axes), and a (the smallest axes). These axes all have corresponding angles of 90 degrees. Pinalite belongs to the biaxial optical class, and is negative.".
- Q1056829 label "Pinalite".
- Q1056829 name "Pinalite".