پکتولیت
Sign in to savePectolite is a white to gray mineral, NaCa2Si3O8(OH), a sodium calcium hydroxide inosilicate. It crystallizes in the triclinic system typically occurring in radiated or fibrous crystalline masses. It has a Mohs hardness of 4.5 to 5 and a specific gravity of 2.7 to 2.9. A highly sought-after variety known as larimar, is a pale to sky blue. There is also a whitish form of the mineral from Alaska that is sometimes marketed as 'Alaska jade'.
Key facts
- Mineral.name
- Pectolite
- Mineral.category
- Inosilicate mineral
- Mineral.image
- Pectolite-263712.jpg
- Mineral.imagesize
- 260px
- Mineral.formula
- NaCa2Si3O8(OH)
- Mineral.IMAsymbol
- Pct
- Mineral.system
- Triclinic
- Mineral.class
- Pinacoidal () (same H-M symbol)
- Mineral.symmetry
- P
- Mineral.unit cell
- a = 7.99 Å, b = 7.03 Å, c = 7.03 Å; α = 90.51°, β = 95.21°, γ = 102.53°; Z = 2
- Mineral.color
- Colorless, whitish, grayish, yellowish
- Mineral.habit
- Tabular to acicular, radiating fibrous, spheroidal, or columnar; massive
- Mineral.twinning
- Twin axis [010] with composition plane [100], common
- Mineral.cleavage
- Perfect on {100} and {001}
- Mineral.fracture
- Uneven
- Mineral.tenacity
- Brittle; tough when compact
- Mineral.mohs
- 4.5 – 5
- Mineral.luster
- Silky, subvitreous
via Wikipedia infobox
Wikidata facts
- Named after
- denaturation
- Image
- Pectolite-118245.jpg
Show 8 more facts
- Nickel-Strunz 9th edition (updated 2009)
- 9.DG.05
- Commons category
- Pectolite
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 9.DG.05
- solid solution series with
- serandite
- crystal system
- triclinic crystal system
- IMA Mineral Symbol
- Pct
- chemical formula
- NaCa₂Si₃O₈(OH)
- Strunz 8th edition (series ID, updated)
- VIII/D.08a
Sources (1)
via Wikidata · CC0