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Gemstone Info

Gemstone Nqe Lus

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Yuav cov piam thaj hauv ntuj hauv peb lub khw


Sugilite yog qhov tsis tshua muaj xim liab rau xim paj yeeb cyclosilicate ntxhia nrog cov tshuaj ua kom muaj tshuaj cuav KNa2 (Fe, Mn, Al) 2Li3Si12O30.

Sugilite crystallizes nyob rau hauv lub hexagonal system nrog prismatic muaju. Lub muaju tsis tshua pom thiab daim ntawv feem ntau loj heev. Nws muaj Mohs hardness ntawm 5.5 txog 6.5 thiab lub zog hnyav ntawm 2.75 txog 2.80. Nws yog feem ntau translucent.

Sugilite tau piav qhia thawj zaug thaum xyoo 1944 los ntawm Japanese tus kws ntsuas tsiaj Ken-ichi Sugi (1901–1948) rau qhov tshwm sim ntawm Iwagi Islet, Nyij Pooj, qhov twg pom muaj nyob hauv aegirine syenite intrusive Tshuag. Nws muaj nyob hauv qhov chaw zoo sib xws ntawm Mont Saint-Hilaire, Quebec, Canada. Hauv Wessels mine nyob rau sab Qaum Teb Cape xeev ntawm South Africa, sugilite yog mined los ntawm kev ua kom deb-khi manganese cia. Nws tseem raug tshaj tawm los ntawm Liguria thiab Tuscany, Ltalis; Tshiab South Wales, Australia thiab Madhya Pradesh, Is Nrias teb.

Silicate cov ntxhia

Silicate minerals are rock-forming minerals made up of silicate groups. They are the largest and most important class of minerals and make up approximately 90 percent of the Earth’s crust.

Hauv cov ntxhia, silica (silicon dioxide) SiO2 feem ntau yog suav tias yog lub pob zeb silicate. Silica yog pom nyob rau hauv cov xwm li cov ntxhia hauv pob zeb hauv av, thiab nws cov polymorphs.

Nyob rau lub ntiaj teb, ntau yam ntawm silicate cov zaub mov muaj tshwm sim nyob rau hauv qhov sib txuas ntau dua ntawm cov kev sib txuas ua ke los ntawm cov txheej txheem uas tau tsim thiab rov ua haujlwm cov kaub puab rau ntau lab xyoo. Cov txheej txheem no suav nrog kev kho ib nrab, crystallization, fractionation, metamorphism, huab cua, thiab kos duab.

Diatomaceous lub ntiaj teb, ib daim ntawv biogenic ntawm silica raws li saib hauv lub tshuab tsom. Koog hauv cheeb tsam ntsuas kwv yees li 1.13 los ntawm 0.69 hli.
Living organisms also contribute to this geologic cycle. For example, a type of plankton known as diatoms construct their exoskeletons (“frustules”) from silica extracted from seawater. The frustules of dead diatoms are a major constituent of deep ocean sediment, and of diatomaceous earth.

Cyclosilicates

Cyclosilicates, lossis lub nplhaib silicates, muaj peb lossis ntau dua tetrahedra txuas hauv lub nplhaib. Cov qauv mis dav dav yog (SixO3x) 2x−, qhov twg ib lossis ntau qhov roj silicon atoms tuaj yeem hloov los ntawm lwm cov 4-kev sib koom tes atoms. Lub silicon: cov pa oxygen yog 1: 3. Muab ob npaug rau ob sab muaj cov qauv (Si2xO5x) 2x− lossis 2: 5 piv. The Nickel – Strunz kev faib tawm yog 09.C.

Sugilite, tuaj ntawm Australia


Yuav cov piam thaj hauv ntuj hauv peb lub khw

kev ua yuam kev: Cov ntsiab lus yog kev tiv thaiv !!