zoisite

Optical Spectra of Zoisite

1960s

1970s

Faye GH, Nickel EH (1971) On the pleochroism of zoisite from Tanzania. Canadian Mineral 10, 812-821.
Ghose S, Tsang T (1971) Ordering of V²⁺, Mn²⁺, and Fe³⁺ Ions in Zoisite, Ca₂Al₃Si₃O₁₂(OH), Science 171, 274-276.
Tsang T, Ghose S (1971) Electron paramagnetic resonance of V²⁺, Mn²⁺, Fe³⁺ and optical spectra of V³⁺ in blue zoisite, Ca₂Al₃Si₃O₁₂(OH). J Chem Phys 54:856-862.
Platonov AN, Taran AN (1973) Optical spectroscopy of vanadium in natural minerals. III. Absorption spectra of vanadium(4+) and vanadium(3+) complexes. Konstitutsiya i Svoistva Mineralov 7, 75-81. Language: Russian
Schmetzer K, Berdesinski W (1978) Das Absorptionsspektrum von Cr³⁺ in Zoisit. N Jb Mineral Mh 1978:197-202.
Schmetzer K, Bank H (1978) Bluish-green zoisite from Merelani, Tanzania. Gems & Gemology 16, 121-122.

1980s

Schmetzer K (1982) Absorptionsspektroskopie und Farbe von V³⁺-haltigen natūrlichen Oxiden und Silikaten - ein Beitrag zur Kristallchemie des Vanadiuiims. Neues Jahrbuch für Mineralogie Abhandlungen 144, 73-106.,
Fritsch E. Rossman GR (1987) An update on color in gems. Part 1: Introduction and colors caused by dispersed metal ions. Gems & Gemology 23, 126–139.

1990s

Srinivasulu G, Sudhana BM, Reddy BJ, Natarajan R, Rao PS (1992) Electron microprobe analysis: optical and electron paramagnetic resonance studies on Mn-rich zoisite (thulite). Spectrochimica Acta 48A:1421-1425.
Koziarska B, Godlewski M, Suchocki A (1994) Optical properties of zoisite. Physical Review B 50: 12297-12300.
Traber D (1995) Eine mineralchemische und spektroskopische Studie an Zoisiten aus Melelani, Tansania. Diplomarbeit, Fakultät der Universität Basel. 90 pages.

2000s

Notari F, Boillat PY, Grobon C (2001) La tanzanite (beta zoïsite): Détection du traitement thermique. Revue de gemmologie 141/142, 34-36.
Langer K, Tillmanns E, Kersten M, Almen H, Arni RK (2002) The crystal chemistry of Mn³⁺ in the clino- and orthozoisite structure types, Ca₂M₃³⁺[OH|O|SiO₄|Si₂O₇]: A structural and spectroscopic study of some natural piemontites and “thulites” and their synthetic equivalents. Z Kristallogr 217:563-580.
Liebscher A (2004) Spectroscopy of Epidote Minerals. Reviews in Mineralogy & Geochemistry 56, 125-170.
Olivier B (2006) The Geology and Petrology of the Merelani tanzanite deposit, NE Tanzania. Dissertation. University of Stellenboch, South Africa. 434 pages.
Delaultre F (2007) Tanzanite et Autres Zoïsites de Merelani. Diplôme d'Université de Gemmologie, Universite de Nantes. 83 pages.

2010s

Choudhary, Gagan (2010) A greenish yellow zoisite. Australian Gemmologist, 24, 90-91.
Reddy SL, Maheswaramma KS, Reddy RR, Reddy AV, Nakamura y, Reddy BJ, Endo T, Frost RL (2011) Electron paramagnetic resonance, NIR studies on zoisite, clinozoisite and chrom-zoisite minerals. Spectrochimica Acta A 78, 1240-1244.
Smith CP (2011) Natural-color tanzanite. Gems & Gemology 47, 119-120.
Bocchio R, Adamo I, Bordoni V, Caucia F, Diella V (2012) Gem-quality zoisite from Merelani (Northeastern Tanzania): review and new data. Periodico di Mineralogia 81, 3, 379-391.
Javier-Ccallata H, Watanabe S (2013) Crystal field effect on EPR and optical absorption properties of natural green zoisite. Spectrochimica A, 104, 505-511.
Thongnopkukkn P, Chanwanitsakun P (2018) Effect of heat treatment on spectroscopic properties of tanzanite. IOP Conf. Series: Journal of Physics: Conf. Series 1144 (2018) 012183.

2020s

Pluthametwisute T, Wanthanachaisaeng B, Saiyasombat C, Sutthirat C (2020) Cause of color modification in tanzanite after heat treatment. Molecules 25, 3743.
Schwarzinger C (2023) The Heat Treatment of Pink Zoisite. Minerals 12, 1472.

Reddy BJ, Sarma KBN (1982) Absorption spectra of manganese(2+) in manganoan clinozoisite. Acta Physica Academiae Scientiarum Hungaricae 52, 117-22.
Reddy SL, Maheswaramma KS, Reddy RR, Reddy AV, Nakamura y, Reddy BJ, Endo T, Frost RL (2011) Electron paramagnetic resonance, NIR studies on zoisite, clinozoisite and chrom-zoisite minerals. Spectrochimica Acta A 78, 1240-1244.