Research output: Contribution to journal › Article
Zvyaginite, NaZnNb2Ti[Si2O7]2O(OH,F)3(H2O)4 + x (x <1), a new mineral of the epistolite group from the Lovozero Alkaline Pluton, Kola Peninsula, Russia. / Pekov, I.V.; Lykova, I.S.; Chukanov, N.V.; Yapaskurt, V.O.; Belakovskiy, D.I.; Zolotarev, A.A. Jr.; Zubkova, N.V.
In: Geology of Ore Deposits, Vol. 56, No. 8, 2014, p. 644-656.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Zvyaginite, NaZnNb2Ti[Si2O7]2O(OH,F)3(H2O)4 + x (x <1), a new mineral of the epistolite group from the Lovozero Alkaline Pluton, Kola Peninsula, Russia
AU - Pekov, I.V.
AU - Lykova, I.S.
AU - Chukanov, N.V.
AU - Yapaskurt, V.O.
AU - Belakovskiy, D.I.
AU - Zolotarev, A.A. Jr.
AU - Zubkova, N.V.
PY - 2014
Y1 - 2014
N2 - © 2014, Pleiades Publishing, Ltd. A new mineral, zvyaginite, a member of the epistolite group, has been found at Mt. Malyi Punkaruaiv, Lovozero Alkaline Complex, Kola Peninsula, Russia. It occurs in a hydrothermally altered peralkaline pegmatite and is associated with ussingite, microcline, aegirine, sphalerite, vigrishinite, and sauconite. Zvyaginite forms rectangular or irregular-shaped lamellae up to 0.1 × 1 × 2 cm in size when flattened [001]. The mineral is translucent to transparent and colorless, pearly-white, yellowish brownish, pale pink, or violet pink. The luster is nacreous on crystal faces and greasy on broken surfaces. Its Mohs’ hardness is 2.5–3. Zvyaginite is brittle. The cleavage parallel to {001} is perfect. Dmeas = 2.88(3), Dcalc = 2.94 g/cm3. The mineral is optically biaxial (−), α = 1.626(5), β = 1.714(3), γ = 1.740(5), 2Vmeas = 45(15)°, 2Vcalc = 55°. The IR spectrum is given. Chemical composition is as follows (wt %; average of five point analyses; H2O was determined using the modified P
AB - © 2014, Pleiades Publishing, Ltd. A new mineral, zvyaginite, a member of the epistolite group, has been found at Mt. Malyi Punkaruaiv, Lovozero Alkaline Complex, Kola Peninsula, Russia. It occurs in a hydrothermally altered peralkaline pegmatite and is associated with ussingite, microcline, aegirine, sphalerite, vigrishinite, and sauconite. Zvyaginite forms rectangular or irregular-shaped lamellae up to 0.1 × 1 × 2 cm in size when flattened [001]. The mineral is translucent to transparent and colorless, pearly-white, yellowish brownish, pale pink, or violet pink. The luster is nacreous on crystal faces and greasy on broken surfaces. Its Mohs’ hardness is 2.5–3. Zvyaginite is brittle. The cleavage parallel to {001} is perfect. Dmeas = 2.88(3), Dcalc = 2.94 g/cm3. The mineral is optically biaxial (−), α = 1.626(5), β = 1.714(3), γ = 1.740(5), 2Vmeas = 45(15)°, 2Vcalc = 55°. The IR spectrum is given. Chemical composition is as follows (wt %; average of five point analyses; H2O was determined using the modified P
U2 - 10.1134/S1075701514080066
DO - 10.1134/S1075701514080066
M3 - Article
VL - 56
SP - 644
EP - 656
JO - Geology of Ore Deposits
JF - Geology of Ore Deposits
SN - 1075-7015
IS - 8
ER -
ID: 7036451