Lawsonite - Wikipedia
Lawsonite is a hydrous calcium aluminium sorosilicate mineral with formula CaAl 2 Si 2 O 7 (OH) 2 ·H 2 O. Lawsonite crystallizes in the orthorhombic system in prismatic, often tabular crystals. Crystal twinning is common. It forms transparent to translucent colorless, white, pink, and bluish to pinkish grey glassy to greasy crystals.
硬柱石 - 维基百科，自由的百科全书
硬柱石（英語： lawsonite ）是一種礦物，化學式為CaAl 2 Si 2 O 7 (OH) 2 •H 2 O.，屬正交晶系。 硬度8，比重3.09 [ 1 ] 。 蓝闪石 和硬柱石均爲藍色在藍片岩變質相中常見。
硬柱石 - 百度百科
硬柱石（lawsonite）是一种含水钙铝硅酸盐矿物，化学式是CaAI2 [Si2O7] (OH)2·H20。.
Lawsonite Mineral Data
Lawsonite. Comments: Glaucophane schist with a heavy druse of lawsonite crystals. Location: Reed Station, Tiburon, Marin County, California, USA. Scale: Crystal size 7 mm. © John Veevaert. Lawsonite Crystallography. Axial Ratios: a:b:c =1.5051:1:2.2488.
Lawsonite - Clark Science Center
Lawsonite is a typical mineral of the glaucophane schist facies associated with chlorite, titanite, glaucophane, quartz, epidote, and garnet. Also found as a secondary mineral in altered gabbros and diorates.Generally located on the Tiburon Peninsula in San Francisco Bay, California.
Lawsonite Gemstone: Properties, Meanings, Value & More - Gem …
2023年9月5日 · Lawsonite is an important mineral for geological research but a very rare gemstone, making it sought-after by collectors. Learn lawsonite’s prices, properties, and history in this guide!
The Mineral lawsonite - The Mineral and Gemstone Kingdom
Lawsonite is a rare mineral, and is a hydrated variant of the feldspar Anorthite. It is named after Andrew Cowper Lawson (1861-1952), a professor of geology at the University of California at Berkeley. The Bay Area of California is the type locality and primary region of this mineral, and this is where Lawson taught.
Lawsonite composition and zoning as tracers of subduction processes…
2020年10月1日 · Lawsonite is an abundant hydrous mineral in oceanic crust, sediments, and metasomatic rocks at depths of ~45 to 300 km in most subduction zones, but it is rarely preserved in the geologic record because it commonly transforms to epidote and other minerals during prograde or retrograde metamorphism.
Lawsonite - an overview | ScienceDirect Topics
Lawsonite is a mineral that serves as a significant reservoir for water, rare earth elements, uranium, lead, strontium, and other substances within subducted crust. It is a valuable indicator of fluid-rock interactions and preserves information about pressure-temperature-composition conditions and the timing of metamorphism during subduction ...
Lawsonite - Geology Page
2014年5月20日 · Lawsonite is a hydrous calcium aluminium sorosilicate mineral with formula CaAl 2 (Si 2 O 7) (OH) 2 ·H 2 O. Lawsonite crystallizes in the orthorhombic system in prismatic, often tabular crystals. Crystal twinning is common. It forms transparent to translucent colorless, white, and bluish to pinkish grey glassy to greasy crystals.