si 8造句

例句与造句

There is also a rare amphibole called holmquistite, chemical formula Li 2 Mg 3 Al 2 Si 8 O 22 ( OH ) 2, which occurs only in lithium-rich continental rocks.
An extreme example is ekanite, ( Ca, Fe, Pb ) 2 ( Th, U ) Si 8 O 20, which almost never occurs in nonmetamict form due to thorium being an essential part of its chemical composition.
The backbone of the amphiboles is the [ Si 8 O 22 ] 12 "; it is balanced by cations in three possible positions, although the third position is not always used, and one element can occupy both remaining ones.
"' Anthophyllite "'is an amphibole mineral : & Mg 2 Mg 5 Si 8 O 22 ( OH ) 2 ( & is for a vacancy, a point defect in the crystal structure ), magnesium iron polymorphic with cummingtonite.
These minerals are found in high-grade metamorphic banded iron formation and form a compositional series between Mn 2 Mg 5 Si 8 O 22 ( OH ) 2 ( tirodite ) and Mn 2 Fe 5 Si 8 O 22 ( OH ) 2 ( dannemorite ).
It's difficult to find si 8 in a sentence. 用si 8造句挺难的

These minerals are found in high-grade metamorphic banded iron formation and form a compositional series between Mn 2 Mg 5 Si 8 O 22 ( OH ) 2 ( tirodite ) and Mn 2 Fe 5 Si 8 O 22 ( OH ) 2 ( dannemorite ).
"' Glaucophane "'is the name of a mineral and a mineral group belonging to the sodic amphibole supergroup of the double chain inosilicates, with the chemical formula & Na 2 ( Mg 3 Al 2 ) Si 8 O 22 ( OH ) 2.
RE x B 12 C 0.33 Si 3.0 ( RE = Y and Gd Lu ) have a unique crystal structure with two units a cluster of B 12 icosahedra and a Si 8 ethane-like complex and one bonding configuration ( B 12 ) 3 a " Si-Ca " ( B 12 ) 3.
Generally occurs in Si-poor volcanic rocks, marine basalts and breccias, associated with other sodium zeolites such as analcime, Na ( Si 2 Al ) O 6 稨 2 O, natrolite, Na 2 ( Si 3 Al 2 ) O 10 ?H 2 O, and chabazite-Na, Na 2 Ca ( Si 8 Al 4 ) O 24 ?2H 2 O . It also occurs in Na-rich pegmatites in alkaline rocks, and as an alteration product in some nepheline syenite intrusions.