a = 7.118, b = 6.031 c = 11.209 [Å] β = 90.00–90.02°; Z = 2
Identification
Formula mass
488.32 g/mol
Color
Greenish blue, sky-blue to bluish green
Crystal habit
Crystals scaly, or as crusts; earthy
Twinning
Common on {110}, typically repeated
Cleavage
{001} perfect, {010} distinct
Fracture
Uneven
Mohs scale hardness
2.5 to 3
Luster
Vitreous, crusts silky
Streak
Blue green
Diaphaneity
Translucent
Specific gravity
3.28[3] 3.48 to 3.5[2] 3.5[4] 2.28 to 3.34[5]
Optical properties
Biaxial (−) r>v weak
Refractive index
nα = 1.708 nβ = 1.760 nγ = 1.798 [2]
Birefringence
δ = 0.090
Pleochroism
X = c = light yellowish green Y = b = blue-green Z = a = sky blue
Solubility
Insoluble in water, easily soluble in dilute acids or NH4OH
Other characteristics
May be altered to brochantite. Not radioactive
References
[2][3][4][5]
Langite is a rare hydrated copper sulfate mineral, with hydroxyl, found almost exclusively in druses of small crystals. It is formed from the oxidation of copper sulfides, and was first described in specimens from Cornwall, United Kingdom. It is dimorphous with wroewolfeite. Langite was discovered in 1864 and named after the physicist and crystallographer Viktor von Lang (1838–1921), who was Professor of Physics at the University of Vienna, Austria.[2]
Langite is a rare hydrated copper sulfate mineral, with hydroxyl, found almost exclusively in druses of small crystals. It is formed from the oxidation...
("Investigations into the physical conditions of crystallized bodies"). The mineral langite was named in his honor by Nevil Story Maskelyne. The Physical Tourist:...
economic policies (for Lyons official Labor had been too radical, for the Langites they were not radical enough), forming a "Lang Labor" group on the cross-benches...
Local Government and Housing in the new Government, the only one of the ex-Langite faction appointed to Cabinet. He failed to make significant progress on...
with only 18 seats between them (14 for the official ALP and four for the Langites). Prior to the election, it was assumed that the Country Party, led by...
which may be of post-mine formation. It is associated with brochantite, langite, devilline, serpierite, woodwardite, wroewolfeite, aurichalcite, azurite...
election. With the Labor Party split between Scullin's supporters and Langites, and with a very popular leader (Lyons had a genial manner and the common...
the Fowey Consols. Fowey Consols is the type locality for two minerals - Langite and Rhabdophane-(Ce), and a total of 34 valid minerals have been reported...
cuprite, cyanotrichite, strashimirite, parnauite, lavendulan, cornubite, langite, clinoclase, pharmacosiderite and mansfieldite. The type material is conserved...
been found associated with devilline, posnjakite, ktenasite, linarite, langite, brochantite, wroewolfeite, namuwite, schulenbergite, hydrozincite, malachite...
weeks earlier, this cost Scullin his majority. In November, the UAP and Langites rose to defeat the government on a non-confidence motion, and an election...
conference and declared: "To be a Laborite one must not necessarily be a Langite. Despite anything the Lang faction may do, I will stand firm in my loyalty...
Adherents of Langism, or his government and politics, are referred to as Langites. Much of Langism centres around the economic policies and ideals of the...
NaAl(PO4)F – French mineralogist Antoine François Alfred Lacroix (1863–1948) Langite: Cu4(SO4)(OH)6·2H2O – Austrian chemist Viktor von Lang (1838–1921) Laueite...
referendum on this question. Heffron had long supported this policy from his Langite days, seeing the council as an outdated bastion of conservative privilege...
referendum on this question. Heffron had long supported this policy from his Langite days, seeing the council as an outdated bastion of conservative privilege...
Australian House of Representatives as the member for Lang, representing the Langite Australian Labor Party (NSW). Mulcahy joined the federal Labor Party when...
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