Topaz

E607904

Topaz is a silicate mineral gemstone prized for its clarity and range of colors, commonly used in jewelry and often linked to themes of strength and protection.

All labels observed (4)

Label Occurrences
Topaz canonical 4
Topaz (gemstone) 1
Whitney Flame Topaz 1

How this entity was disambiguated

Statements (57)

Predicate Object
instanceOf gemstone ⓘ
nesosilicate ⓘ
silicate mineral ⓘ
associatedRockType granite ⓘ
rhyolite ⓘ
birefringence 0.008–0.010 ⓘ
birthstoneFor November ⓘ
chemicalFormula Al2SiO4(F,OH)2 ⓘ
cleavage perfect basal cleavage ⓘ
color blue ⓘ
brown ⓘ
colorless ⓘ
green ⓘ
multicolored ⓘ
orange ⓘ
pink ⓘ
red ⓘ
yellow ⓘ
commonTradeName blue topaz ⓘ
imperial topaz ⓘ
mystic topaz ⓘ
containsElement aluminium ⓘ
fluorine ⓘ
hydrogen ⓘ
oxygen ⓘ
silicon ⓘ
crystalHabit columnar crystals ⓘ
prismatic crystals ⓘ
crystalSystem orthorhombic ⓘ
etymologyAlternativeOrigin Sanskrit tapas ⓘ
etymologyLanguage Greek ⓘ
etymologyRoot topazos ⓘ
fracture subconchoidal ⓘ
hardnessMohs 8 ⓘ
luster vitreous ⓘ
majorProducerCountry Brazil ⓘ
Nigeria ⓘ
Pakistan ⓘ
Russia ⓘ
Sri Lanka ⓘ
United States ⓘ
occurrenceEnvironment alluvial deposits ⓘ
greisens ⓘ
high-temperature quartz veins ⓘ
pegmatites ⓘ
opticalCharacter biaxial positive ⓘ
refractiveIndex 1.609–1.643 ⓘ
specificGravity 3.4–3.6 ⓘ
streak colorless ⓘ
traditionalAssociation healing ⓘ
protection ⓘ
strength ⓘ
transparency transparent to translucent ⓘ
treatment heat treatment ⓘ
irradiation ⓘ
usedFor gemstone carvings ⓘ
jewelry ⓘ

How these facts were elicited

Referenced by (7)

Full triples — surface form annotated when it differs from this entity's canonical label.

Scorpio → associatedStone → Topaz ⓘ
Ratnapura → gemTypeMined → topaz ⓘ
linked to: Topaz
Topaz Medallion → namedAfter → Topaz (gemstone) ⓘ
subject linked to: topaz medallion
linked to: Topaz
National Gem Collection → hasNotableItem → Whitney Flame Topaz ⓘ
linked to: Topaz
Topaz → title → Topaz ⓘ
Topaz → basedOn → Topaz ⓘ