Opal-AN
A variety of Opal
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About Opal-AN
Formula:
SiO2 Β· nH2O
Colour:
colourless, white, creme-coloured
Lustre:
Vitreous
Hardness:
5½ - 6½
Specific Gravity:
2.0 - 2.2
A variety of Opal-A
Opal-AN is a term for amorphous opal with a glass-like structure (Graetsch, 1994). The "A" in the name stands for amorphous; the subscript "N" is to imply its structure is network-like similar to silica glass; however, it still contains about 3-8% water, both as molecular water and bound in silanol (Si-O-H) groups.
In the study of Lee et al. (2022) opal-AN was shown to mainly comprise aggregates of differently-sized nanospheres (<5 nm) that form banded features. The opal-AG studied comprised close-packed silica nanospheres, ~400 nm in diameter.
This form of opal occurs as hyalite in volcanic and pegmatite environments where the silica deposits from the gas phase (FlΓΆrke et al., 1973) and forms globular and irregular crusts. Because of its homogeneous internal structure, it does not show opalescence and is transparent if pure. The refractive index varies slightly with water content and lies between 1.44 and 1.46 (Graetsch, 1994).
Opal-AN is a term for amorphous opal with a glass-like structure (Graetsch, 1994). The "A" in the name stands for amorphous; the subscript "N" is to imply its structure is network-like similar to silica glass; however, it still contains about 3-8% water, both as molecular water and bound in silanol (Si-O-H) groups.
In the study of Lee et al. (2022) opal-AN was shown to mainly comprise aggregates of differently-sized nanospheres (<5 nm) that form banded features. The opal-AG studied comprised close-packed silica nanospheres, ~400 nm in diameter.
This form of opal occurs as hyalite in volcanic and pegmatite environments where the silica deposits from the gas phase (FlΓΆrke et al., 1973) and forms globular and irregular crusts. Because of its homogeneous internal structure, it does not show opalescence and is transparent if pure. The refractive index varies slightly with water content and lies between 1.44 and 1.46 (Graetsch, 1994).
Unique Identifiers
Mindat ID:
1959 (as Opal-AN)
3004 (as Opal)
3004 (as Opal)
Long-form identifier:
mindat:1:1:1959:6 (as Opal-AN)
mindat:1:1:3004:1 (as Opal)
mindat:1:1:3004:1 (as Opal)
GUID
(UUID V4):
(UUID V4):
62621afb-2da7-4919-839b-681d50c9c8f5 (as Opal-AN)
b3226449-9ed0-47fe-a88a-e53851c6d480 (as Opal)
b3226449-9ed0-47fe-a88a-e53851c6d480 (as Opal)
Physical Properties of Opal-AN
Vitreous
Transparency:
Transparent, Translucent
Colour:
colourless, white, creme-coloured
Comment:
no opalescence (play of colour)
Streak:
white
Hardness:
5½ - 6½ on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
2.0 - 2.2 g/cm3 (Measured)
Comment:
varies with water content
Chemistry of Opal-AN
Mindat Formula:
SiO2 Β· nH2O
Elements listed:
Geological Environment
Geological Setting:
Volcanic vugs, pegmatite pockets, fumaroles.
Synonyms of Opal-AN
Other Language Names for Opal-AN
Varieties of Opal-AN
Common Associates
Associated Minerals Based on Photo Data:
268 photos of Opal-AN associated with Quartz | SiO2 |
204 photos of Opal-AN associated with Schorl | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
176 photos of Opal-AN associated with Fluorite | CaF2 |
158 photos of Opal-AN associated with Carbonate-rich Fluorapatite | Ca5(PO4,CO3)3(F,O) |
125 photos of Opal-AN associated with Smoky Quartz | SiO2 |
123 photos of Opal-AN associated with Calcite | CaCO3 |
119 photos of Opal-AN associated with Muscovite | KAl2(AlSi3O10)(OH)2 |
101 photos of Opal-AN associated with Feldspar Group | |
101 photos of Opal-AN associated with Microcline | K(AlSi3O8) |
91 photos of Opal-AN associated with Fluorapatite | Ca5(PO4)3F |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Opal-AN
mindat.org URL:
https://www.mindat.org/min-1959.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Opal-AN
Reference List:
Localities for Opal-AN
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
β - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Afghanistan | |
| [var: Hyalite] Jose Zendrera Collection |
Antarctica | |
| [var: Hyalite] Collection of RJ Martin |
| [var: Hyalite] Collection of RJ Martin |
Argentina | |
| PadrΓ³n de Minas de la Provincia de ... |
| PadrΓ³n de Minas de la Provincia de Chubut (2005) |
| Petrov (n.d.) |
| LEAL +1 other reference |
Australia | |
| McQueen +2 other references |
| Collection of RJ Martin correlated to ... |
| Minerals in podiform chromitites - Tumut Serpentinite Province et al. (1) |
| Curtis et al. (2020) |
| [var: Hyalite] Sorrell (n.d.) |
specimen in collection | |
| [var: Hyalite] Collection of RJ Martin |
Jensen (1912) | |
| Birch et al. (1997) |
The Daydream Mine | |
| |
| Con Constantinides collection |
| [var: Hyalite] Sorrell (n.d.) |
| [var: Hyalite] Derrick +1 other reference |
Graham Lee Collection | |
| Personal collection and shown on photo |
| |
| [var: Hyalite] Sorrell (n.d.) |
| Francis (2010) |
| Sorrell (n.d.) +1 other reference |
| Collection of RJ Martin |
| Brugger et al. (2003) |
| Pers. Comm. M. Willoughby. Found on ... |
| Personal Collection of M. Willoughby. |
| Collection of M. Willoughby. |
| |
| J Bosworth |
| www.crocoite.com (2003) |
| Mathew Latham collection |
| [var: Hyalite] R Bottrill collection |
| crocoite.com |
| Sorrell (n.d.) |
| [var: Hyalite] Sorrell (n.d.) |
Toby Billing collection | |
| Museum Victoria Mineralogy Collection |
Museum Victoria Mineralogy Collection | |
| Judy Rowe collection |
| |
| Birch (1989) |
| [var: Hyalite] Sorrell (n.d.) |
[var: Hyalite] Sorrell (n.d.) | |
| [var: Hyalite] Sorrell (n.d.) |
| [var: Hyalite] Sorrell (n.d.) |
| Sorrell (n.d.) |
J.D.Hollis. 1979. Some little known ... | |
| Ryan Eagle field collected 2018 |
Ryan Eagle personal observation 2016 | |
| Judy Rowe collection |
| specimen in collection |
ex Joan Lamond Collection | |
| W.D.Birch & D.A.Henry 1993. Phosphate ... |
| Sorrell (n.d.) |
| Birch et al. (1993) |
| Jon Mommers collection |
| [var: Hyalite] Sorrell (n.d.) |
| Sorrell (n.d.) +1 other reference |
| Sorrell (n.d.) |
| Sorrell (n.d.) |
| J M Bennett Collection |
| Fetherston et al. (2013) |
| Jacobson et al. (2007) |
| Pegamtites of Western Australia +2 other references |
Austria | |
| Schebesta (1983) +2 other references |
| - (n.d.) +2 other references |
Tuma (1991) | |
[var: Hyalite] Mineralienatlas.de +1 other reference | |
| Niedermayr et al. (1995) |
| Niedermayr et al. (1995) |
| Niedermayr et al. (1995) |
| Meixner (1952) +1 other reference |
| |
| C.Auer (2018) |
| Kolitsch et al. (2013) |
| Harald Schillhammer collection |
| Neschen (n.d.) |
Neschen (n.d.) | |
Neschen (n.d.) | |
Neschen (n.d.) | |
[var: Hyalite] Erwin LΓΆffler collection | |
| Kolitsch et al. (2023) |
| Harald Schillhammer collection +1 other reference |
Kolitsch et al. (2014) | |
| Strasser (1989) |
| Strasser (1989) |
| Strasser (1989) |
Strasser (1989) | |
Strasser (1989) | |
| Strasser (1989) |
Strasser (1989) | |
Strasser (1989) | |
| Strasser (1989) |
| Strasser (1989) |
| Strasser (1989) |
| Exel (1993) |
| Strasser (1989) |
| Strasser (1989) |
| Aufschluss 1972 (SB) |
Taucher+Hollerer (2001) | |
| Weissensteiner (1975) |
| Weninger (1976) |
| Exel (1993) |
Koritnig | |
| Meixner (1937) |
| Neschen (n.d.) |
| Aufschluss 1972 (SB) |
| Neuwirth (1952) |
| Aufschluss 1972 (SB) |
| Neschen (n.d.) |
| Postl et al. (1996) |
| Exel (1993) |
| Neschen (n.d.) |
| Niedermayr (1987) +2 other references |
| Josef Schadler (Handschriftliche Aufzeichnungen) |
| Kolitsch (2008) +1 other reference |
| Neschen (n.d.) |
Bolivia | |
| Ahlfeld et al. (1955) |
| Salomon Rivas y Federico Ahlfeld (1998) |
| Federico Ahlfeld and Jorge MuΓ±oz Reyes (1955) |
Federico Ahlfeld and Jorge MuΓ±oz Reyes (1955) | |
| [var: Hyalite] Pough (1976) |
| Petrov (n.d.) |
Brazil | |
| [var: Hyalite] Sauer (1982) |
| Mineralogical Record (1977) |
| Pagano et al. (2001) |
| Cassedanne et al. (1999) |
| Menezes (n.d.) |
| de Brito Barreto et al. (2010) +1 other reference |
| e Souza et al. (2020) |
| [var: Hyalite] Sauer (1982) |
| de Brito Barreto et al. (2010) |
[var: Hyalite] de Brito Barreto et al. (2010) | |
| [var: Hyalite] Fernando Brederodes Collection |
| Manfred Bergmann (2009) |
| Ruiz (2001) |
Bulgaria | |
| Marcus Voigt Collection |
Cambodia | |
| Economic and Social Commission for Asia and the Pacific (1993) |
| Economic and Social Commission for Asia and the Pacific (1993) |
Canada | |
| [var: Hyalite] personal correspondence with Giles Peatfield (see comments) |
| [var: Hyalite] Peatfield (n.d.) |
| [var: Hyalite] Michael Adamowicz Collection |
| [var: Hyalite] Shadow Lake RockHounders Facebook group |
| ontariominerals.com |
Chile | |
| Tetra Tech Chile (2019) |
China | |
| [var: Hyalite] National Geological Archives of China ... |
| C. Lemanski et al. (1) |
| Wuhan Huaze Science & Technology ... |
Colombia | |
| - (2002) |
Czech Republic | |
| |
| CΓcha J. |
| [var: Hyalite] PauliΕ‘ P. et al. (2015) |
| [var: Hyalite] P.Zeman et al. (2017) |
| Hibsch et al. (1911) |
| www.geocities.com/Smula.geo |
| RadoΕ M. VΓ½znamnΓ© mineralogickΓ© lokality ΔeskΓ©ho stΕedohoΕΓ. MinerΓ‘l 2009 (2) |
| [var: Hyalite] P.PauliΕ‘ |
DR Congo | |
| Uwe Haubenreisser collection |
Ethiopia | |
| - (Rock Currier collection) |
France | |
| Robin Fialip |
| Pierre Le Roch Collection |
| Collected by StΓ©phane Jamon |
| Aufschluss 1974 (3) |
| Anthony Geneyton Collection |
| [var: Hyalite] MΓΌller et al. (2023) |
| Barrier et al. (2009) |
| Ansermet et al. (2010) |
| Queneau (n.d.) |
| Remy et al. (2014) |
| [var: Hyalite] Baret (1905) |
| [var: Hyalite] S. MAURY (S) |
| MAURY (S) |
[var: Hyalite] MAURY (S) | |
| collection Joachim Esche |
Germany | |
| WeiΓ (1990) |
| Fricke et al. (1988) |
Walenta (1992) | |
| Aufschluss 1988 (2) |
| |
| Fricke et al. (1988) |
| Bega photo |
| WeiΓ (1990) |
| 70. +1 other reference |
| Walenta (1992) |
| www.mineralienatlas.de (2021) |
| Schmeltzer (1993) +1 other reference |
| Lapis 23 (12) |
| Walenta (1992) |
| WeiΓ (1990) |
| 54. +1 other reference |
| Walenta (1992) |
| WeiΓ (1990) |
| Habel (2009) |
| WeiΓ (1990) |
Mineralien-Welt 18 (5) | |
| Wittern (2001) |
| F. MΓΌller: "Bayerns steinreiche Ecke" et al. (Hof) |
| Rost (1949) |
| WeiΓ (1990) |
| Neschen (n.d.) |
| Eigler et al. (1982) +1 other reference |
| WeiΓ (1990) |
| Luetcke (n.d.) |
| WeiΓ (1990) |
| |
| WeiΓ (1990) |
| [var: Hyalite] Jordan (1803) |
| WeiΓ (1990) |
| Collection of Volker Betz |
| WeiΓ (1990) |
| [var: Hyalite] www.zobodat.at (2022) |
| WeiΓ (1990) |
| Ehrenberg et al. (1982) |
| |
| WeiΓ (1990) |
| |
| WeiΓ (1990) |
| WeiΓ (1990) |
| |
| Klein (1999) |
| Brauns (1922) |
| Blass et al. (VI) |
| WeiΓ (1990) |
| Hentschel (1987) |
| ko.jansen |
| BlaΓ et al. (2013) |
Hentschel (1987) | |
| [var: Hyalite] Christof SchΓ€fer collection |
| Hentschel (1987) |
| Hentschel (1987) |
| www.minmax.net |
| T. Witzke & T. Giesler (1993) |
| GrΓΆbner et al. (2007) +1 other reference |
Greece | |
| Ritter (1978) |
| Branko Rieck collection |
| Christophos |
| |
Hungary | |
| SzakΓ‘ll: Topographia Mineralogica ... |
| |
Koch: Minerals of Hungary | |
| SzakΓ‘ll-Weiszburg: TelkibΓ‘nya |
| |
| SzakΓ‘ll et al. (1996) |
| SzakΓ‘ll: Top.Min. Hun. |
| |
Betts (n.d.) | |
SzakΓ‘ll: Topographia Mineralogica ... | |
SzakΓ‘ll: Topographia Mineralogica ... | |
SzakΓ‘ll: Topographia Mineralogica ... | |
SzakΓ‘ll: Topographia Mineralogica ... | |
SzakΓ‘ll: Topographia Mineralogica ... | |
| SzakΓ‘ll: Topographia Mineralogica ... |
| geomania.hu (2011) |
| www.geomania.hu (2013) |
| Own found |
| www.geomania.hu (2013) |
| SzakΓ‘ll-Gatter-Szendrei: Hungarian ... |
geomania.hu (2013) | |
KΓΆrmendy Regina (2011) | |
T UngvΓ‘ri collection | |
GEODA/2000 | |
www.geomania.hu (2013) | |
| DΓ‘vid SzabΓ³ |
| SzakΓ‘ll - Gatter: Minerals of Hungary |
| |
Indonesia | |
| Rod Martin personal collection |
[var: Hyalite] Sujatmiko et al. (2007) | |
Italy | |
| samples in Messina University and ... |
Messina University collection +1 other reference | |
| Napoleoni et al. (2021) |
Napoleoni et al. (2021) | |
| Passaglia et al. (1982) |
| Tabacchi C. (1974) +1 other reference |
| Fabio Brignoli collection |
| [var: Hyalite] Collection Giuseppe Finello |
| [var: Hyalite] Curlo (1929) |
| Mariani P. |
| Albertini (1983) |
| [var: Hyalite] Roggiani A.G. (1969) +2 other references |
| De Michele (1974) |
| De Michele (1974) |
| [var: Hyalite] Bortolozzi (n.d.) |
| Antonio Gamboni collection |
| [var: Hyalite] Stara et al. (1996) |
Conti-Vecchi G. Stara P. (1991) | |
| [var: Hyalite] Stara et al. (1993) |
Chinellato Matteo and Michael C. Roarke ... | |
| Sergio Russo Collection |
| Orlandi et al. (1997) |
Barsotti et al. (2006) | |
Orlandi et al. (1997) | |
| [var: Hyalite] Bonifazi (2020) |
| [var: Hyalite] Bonifazi (2020) |
[var: Hyalite] Bonifazi (2020) | |
Japan | |
| Uehara et al. (2014) |
| Petrov (n.d.) |
Alfredo Petrov | |
| Petrov (n.d.) |
| Alfredo Petrov specimens |
| [var: Hyalite] Amir Akhavan Collection |
| [var: Hyalite] Yamada (2004) |
| Miyawaki et al. (2003) |
Miyawaki et al. (2000) | |
| Nakatsugawa Mineral Museum (Gifu Prefecture, Japan) |
| field collected by Alfredo Petrov |
Madagascar | |
| Knut Edvard Larsen collection # M-190 |
| Knut Edvard Larsen collection |
Mexico | |
| Panczner (1987) |
| Yves Masson photo |
| |
| Cook (2013) |
| various added photos |
| [var: Hyalite] Panczner (1987) |
| King (n.d.) |
| Luetcke (n.d.) |
Morocco | |
| Samira |
Namibia | |
| Schnaitmann et al. (2007) |
| MinRec |
E. Schnaitmann et al. (2008) | |
| [var: Hyalite] von Bezing (2007) |
| von Bezing (2007) |
New Zealand | |
| Rod Martin personal collection |
Collection of RJ Martin | |
| Rod Martin Collection |
| [var: Hyalite] Collection of RJ Martin |
| [var: Hyalite] Tim Saunderson collection |
| [var: Hyalite] Collection of Rod Martin |
| Collection of RJ Martin |
Judy Rowe collection | |
| Judy Rowe collection |
| Judy Rowe and Alfredo Petrov specimens |
| Collection of RJ Martin |
| Judy Rowe collection |
Knut Edvard Larsen collection # MM- 3930 (collected by Dick Dufton) | |
| Old Mill or Dog Pound Quarry et al. (NZ) |
| [var: Hyalite] Collection of RJ Martin |
| [var: Hyalite] Tim Saunderson collection |
| [var: Hyalite] Collection of RJ Martin |
| Rod Martin personal collection |
Brotheridge et al. (1995) | |
| Collection of RJ Martin |
| Collection of RJ Martin |
| [var: Hyalite] CF Johnson collection +1 other reference |
Norway | |
| Revheim (2004) |
| Nordli et al. (1997) +1 other reference |
| Hurum (2004) |
| Larsen et al. (2004) |
Nordrum (2007) | |
| Berge (n.d.) |
| WitsΓΈ (1995) |
www.strahlen.org (n.d.) | |
WitsΓΈ (1995) | |
| WitsΓΈ (1995) +1 other reference |
| Nordrum (2012) |
Nordrum et al. (1997) +1 other reference | |
| Nordrum (2012) |
| Berge (n.d.) |
Berge (n.d.) | |
| Larsen et al. (2009) |
| Berge (n.d.) |
| Berge (n.d.) |
| Andresen et al. (2018) |
Atle Michalsen collection | |
| Berge (n.d.) |
| Larsen et al. (2012) |
| Berge (n.d.) |
Berge (n.d.) | |
| Berge (n.d.) |
| [var: Hyalite] Nordrum (2015) |
| Knut Edvard Larsen MM-collection (#1089) |
Pakistan | |
| Jose Zendrera specimen |
[var: Hyalite] Jose Zendrera Collection | |
| [var: Hyalite] Ikram Mineralogy |
imported from Rondu District +1 other reference | |
Peru | |
| Extra Lapis - English No. 10 Opal |
Poland | |
| [var: Hyalite] Lis et al. (1986) |
[var: Hyalite] JΓ€kel [F.W.?] (1853) | |
| [var: Hyalite] Krzysztof Andrzejewski |
| [var: Hyalite] Leopold von Buch 1802 - Geognostische ... +3 other references |
| [var: Hyalite] Adamczyk Z. (2008) |
| [var: Hyalite] Lis et al. (1986) |
| [var: Hyalite] Schumacher K. (1878) +1 other reference |
| [var: Hyalite] Lis et al. (1986) |
| [var: Hyalite] Glocker E.F. (1829) |
| [var: Hyalite] Lis et al. (1986) |
| SzeΕΔg |
| DUBIΕSKA E. et al. (NasΕawice, Lower Silesia, Poland) |
| [var: Hyalite] Roemer (1870) |
Portugal | |
| Marques de SΓ‘ et al. (2010) |
| Alves et al. (2017) |
| Alves (n.d.) |
| Martins da Pedra collection |
| Rui Nunes collection 2012 |
| Pedro Alves collection and analytical ... |
| Tiago Guia's mineral collection (self-collected) |
Alves (n.d.) | |
| Felix Garcia Garcia Mineral Collection |
| Guilherme Pedrosa collection |
| Rui Nunes 2011 |
| Alves (n.d.) +1 other reference |
| |
| Rui Nunes collection |
| King (n.d.) |
| Nuno Afonso collection |
Rui Nunes' visit | |
Alves (n.d.) | |
Alves (n.d.) | |
Russia | |
| [var: Hyalite] Skovitina et al. (2014) |
Pekin et al. (2010) +1 other reference | |
Slovakia | |
| MesiarkinovΓ‘ et al. (2009) |
KodΔra (1986) | |
| KodΔra (1986) |
PauliΕ‘ | |
| Lexa et al. (1999) |
KodΔra (1986) | |
| KodΔra (1986) |
| KodΔra (1986) |
KodΔra (1986) | |
| KodΔra (1986) |
| KodΔra (1986) |
| KodΔra (1986) |
| KodΔra (1986) |
KodΔra (1986) | |
| KodΔra (1986) |
| ΔuΔa (1993) |
KodΔra (1986) | |
KodΔra (1986) | |
| KodΔra (1986) |
| KodΔra (1986) |
| KodΔra (1986) |
| KodΔra (1986) |
KodΔra (1986) | |
KodΔra (1986) | |
| PauliΕ‘ P. |
KodΔra (1986) | |
| PauliΕ‘ P. |
| KodΔra (1986) |
| KodΔra (1986) |
| KodΔra (1986) |
| BacsΓ³ |
| PauliΕ‘ P. |
| KodΔra (1986) |
KodΔra (1986) | |
| KodΔra (1986) |
KodΔra (1986) | |
KodΔra (1986) | |
| KodΔra (1986) |
Personally collected by S.Ε imko in 1994 | |
KodΔra (1986) | |
| Duda et. all. |
| PauliΕ‘ |
| ΔuΔa |
| Slavomir Ε IMKO |
| KodΔra (1986) |
South Africa | |
| [var: Hyalite] Atanasova et al. (2016) |
| Wolfgang R. Windisch personal list. |
| [var: Hyalite] SAMS (South African Micromount Society) |
| Luetcke (n.d.) |
Spain | |
| Personally collected in January 2013 +1 other reference |
Graetsch (1996) | |
Zeolite collcetion of Volker Betz | |
| Martins da Pedra collection |
| Marc C collection |
| Hamid +9 other references |
| |
| |
Switzerland | |
| Stalder et al. (1998) |
| Stalder et al. (1998) |
| |
| Stalder et al. (1998) |
| Stalder et al. (1998) |
| Stalder et al. (1998) |
| Stalder et al. (1998) |
| |
[var: Hyalite] Schwanz (1994) | |
| |
| [var: Hyalite] Gorsatt (Ed.) |
Cuchet et al. (2005) | |
| Meisser (2012) |
UK | |
| Trevor Boyd Collection |
USA | |
| [var: Hyalite] Barwood (1974) |
| Cook et al. (1982) |
| Witkind (1963) |
| Luetcke (n.d.) |
| Eckhard D. Stuart collection |
| Luetcke (n.d.) |
| Luetcke (n.d.) |
| Dana 6:1093. |
Rocks & Min.:57:12. +2 other references | |
Luetcke (n.d.) | |
| [var: Hyalite] Scarborough (1981) |
[var: Hyalite] Scarborough (1981) | |
| Granger (1969) +1 other reference |
| Granger (1959) +1 other reference |
| Granger (1959) |
Granger (1969) +1 other reference | |
| Granger (1959) |
| Granger (1959) |
| The-Vug.com Collecting Minerals of La ... |
P Cristofono collection | |
| The-Vug.com Collecting Minerals of La ... |
| Dana 6: 1094. |
| Luetcke (n.d.) |
| Luetcke (n.d.) |
Luetcke (n.d.) | |
| Luetcke (n.d.) |
| Galbraith (1959) |
| P Cristofono collection |
| |
| Luetcke (n.d.) |
| Martin (2023) |
| [var: Hyalite] Frank Karasti |
| Collected by C. Lemanski |
| Galbraith (1959) |
| Schrader (1915) |
| Luetcke (n.d.) |
Dale (1961) | |
| Former Don Miller collection |
| P Cristofono collection |
Arkansas Geological Survey | |
| [var: Hyalite] Walstrom (n.d.) |
| Collection of RJ Martin |
| Van Nostrand Reinholt Press: 355. +1 other reference |
| Dana 6: 1096. |
Pelletier | |
| Van Nostrand Reinholt Press: 355. +3 other references |
| Van Nostrand Reinholt Press: 356. +3 other references |
| Luetcke (n.d.) |
| [var: Hyalite] Robert E.Walstrom Collection |
| [var: Hyalite] Howard H. J. (2011) |
| Eckhard D. Stuart collection |
| Thorne (n.d.) |
Collected by and in the collection of ... | |
| Cordova |
| Rogers |
| [var: Hyalite] DeVito (1992) |
| Eckel et al. (1997) |
| collected specimens by Alan Goldstein. |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Januzzi et al. (1976) |
| Januzzi (1994) |
| Januzzi et al. (1976) |
Januzzi (1994) | |
| Januzzi et al. (1976) |
| Januzzi et al. (1976) +1 other reference |
Januzzi et al. (1976) | |
Januzzi et al. (1976) | |
| Januzzi et al. (1976) |
field trip report | |
| |
| Moritz (n.d.) |
Betts (1999) | |
Moritz (n.d.) | |
Betts (1999) | |
P Cristofono collection | |
P. Cristofono collection | |
| Shepard (1837) |
| Ed Force collection |
| A. Berluti collection |
Januzzi et al. (1976) | |
| Januzzi et al. (1976) |
| Januzzi et al. (1976) |
| [var: Hyalite] Yedlin (1964) |
| Januzzi et al. (1976) |
| Mike Polletta Observation |
| Personally collected by A. Berluti in ... |
Collected by A. Berluti in 2009-11 | |
| Jones (1960) |
| Januzzi et al. (1976) |
Moritz (n.d.) | |
Schooner (1958 and 1961) +1 other reference | |
Schooner (1958) +1 other reference | |
| Jones (1960) |
Kevin Czaja Collection | |
| Former Don Miller collection |
Former Don Miller collection | |
Kevin Czaja Collection | |
Kevin Czaja Collection | |
| Moritz (n.d.) |
Moritz (n.d.) +1 other reference | |
| Jones et al. (1960) |
| Schooner (1955) |
Jones (1960) | |
Jones (1960) | |
Jones (1960) | |
Rocks & Minerals (1970) | |
| Moritz (n.d.) |
Brace (1823) +1 other reference | |
| Ryerson (1972) |
| Visually identified at a CT museum |
| Rocks & Min.: 64:185. |
| Rocks & Min.: 64:187. |
Cook (1978) | |
| Rocks & Min.:64:190. |
Gems and Minerals of America- Jay Ellis ... | |
| Cook (1978) |
Cook (1978) | |
Cook (1978) | |
Betts (n.d.) | |
| Rocks & Min.:64:195 +1 other reference |
| Cook (1978) |
- (1917) | |
| Cook (1978) |
| [var: Hyalite] Kim Strange collection |
| John Cornish collection |
| Bill Bunn |
| |
| P Cristofono collection |
King et al. (1994) | |
| Thompson et al. (1998) |
| ... |
| Thompson et al. (1998) |
| [var: Hyalite] Falster et al. (2019) |
| Moritz (n.d.) |
King et al. (1994) +1 other reference | |
King et al. (1994) +1 other reference | |
King et al. (6) +1 other reference | |
| King et al. (1994) |
| Dionne et al. (2014) |
| |
| A.Mathauser collection |
| Rocks & Min.: 62:413. |
King (n.d.) | |
Thompson et al. (1998) | |
| [var: Hyalite] Jat Thompson Collection |
| [var: Hyalite] Jat Thompson |
| Minerals of Maryland (1940) +1 other reference |
| Cordua (1969) |
| Gleba (2008) |
| Gleba (2008) |
P Cristofono collection | |
P. Cristofono collection 2011 | |
Gleba (2008) | |
| P. Cristofono collection 2011 |
| P Cristofono collection |
P Cristofono collection | |
| Emerson (1882) +1 other reference |
Emerson (1895) | |
Emerson (1895) | |
| Emerson (1895) |
| P Cristofono collection |
Gleba (2008) | |
| Gleba (2008) |
| P. Cristofono collection |
| Gleba (2008) |
| P Cristofono collection 2010 |
| P Cristofono collection |
Gleba (2008) | |
| Gleba (2008) |
| Rocks & Min.: 21:75. +1 other reference |
| Gleba (2008) |
| Gleba (2008) |
| P Cristofono collection |
P Cristofono collection | |
| Gleba (2008) |
| P. Cristofono collection |
T Mortimer collection | |
P Cristofono collection | |
| Sherwood et al. (1998) |
| Meschter (1953) |
| LaPointe et al. (199) |
| American Mineralogist 19:268-274 |
| [var: Hyalite] - (2005) |
Castor et al. (2004) | |
| [var: Hyalite] Visual Id by Michael Cox |
| Luetcke (n.d.) |
| Luetcke (n.d.) |
| Castor et al. (2004) |
Castor et al. (2004) | |
| Castor et al. (2004) |
| Larry J (1973) |
| [var: Hyalite] Walstrom (n.d.) |
| Luetcke (n.d.) |
| Rocks & Min. 80:243 |
| |
| P Cristofono collection |
Smith | |
| [var: Hyalite] P. Cristofono collection (ex. Gene Bearss) |
| P. Cristofono collection |
| P. Cristofono et al. (2011) |
| Whitmore et al. (2004) |
| [var: Hyalite] Thompson et al. (2022) |
| P. Cristofono collection 2011 |
P. Cristofono collection | |
P Cristofono collection +1 other reference | |
P Cristofono collection | |
| P. Cristofono collection |
| P. Cristofono collection 2011 |
| P Cristofono collection |
P. Cristofono collection | |
| P. Cristofono collection 2011 |
| P. Cristofono collection |
| Rocks & Min.:64:504. +1 other reference |
| Jeremy Zolan Collection |
| [var: Hyalite] P. Cristofono collection |
| Manchester (1931) |
| Canfield (1889) +1 other reference |
| Mins. of NYC & Its Environs et al. (1931) |
| Manchester (1931) |
| NJ State Geol. Ann. Rpt. (1856) |
| American Muiseum of Nat. History et al. (s) +2 other references |
| collected by David Bernstein- 10/2009 |
| Northrop et al. (1996) |
| Identified on specimens obtained at ... |
| Northrop et al. (1996) |
| Page et al. (1956) +3 other references |
| Northrop et al. (1996) |
| Jerry Cone Collection |
| Northrop et al. (1996) |
| Northrop et al. (1996) |
| Luetcke (n.d.) |
Gibbs (2013) | |
Northrop et al. (1996) | |
| Northrop et al. (1996) |
| Northrop et al. (1996) |
| Northrop et al. (1996) |
Manchester (1931) | |
| Rocks & Min.: 20:61. |
| Jensen (1978) |
| Alfredo Petrov |
| King (n.d.) |
| Rocks & Min.:8:61-65. |
| Manchester (1931) |
| Januzzi |
| Manchester (1931) |
Rocks & Min.:11:66 +1 other reference | |
Manchester (1931) | |
| Rocks & Min.: 7:91 +1 other reference |
| Rocks & Min.: 6:101 & 9:136-137. |
| Rocks & Min.: 8:40. |
Rocks & Min.:7:148 & 8:40. | |
Manchester (1931) | |
| USGS Bulletion No.74 +1 other reference |
| Pratt (1933) |
| Pratt (1933) |
| Ref.: Dana 6:499 |
| Rocks & Min.: 17:62 |
| Rocks & Min.:11:76-77. |
| Veal (2004) |
Smithsonian Institution Mineral ... | |
| Rocks & Min.:11:58. |
| Genth |
| - (2005) |
- (2005) | |
Rocks & Min.: 11:58. | |
Genth (1891) | |
| Rocks & Min.:11:58. |
Rocks & Min.: 11:57. | |
| Streeter (2003) |
Rocks & Min.:11:77 & 60:92. | |
U.S Bureau of Mines (Mas/Mils) | |
| Min Rec 10:1 pp29-30 |
Streeter (2003) | |
Min Rec 10:1 pp29-30 | |
Ross (1937) | |
Rocks & Min.: 60:92. | |
Min Rec 10:1 pp29-30 | |
Genth | |
| Ransom |
| C.W. Allen collection |
| C.W. Allen collection |
| Rocks and Minerals (1985) +1 other reference |
| Rocks & Min.:11:58. |
| R&M 72:4 pp 252-264 |
| K. Volkman personal collection |
[var: Hyalite] Aidan Cerenzie Collection | |
| Kleck. W. D. (1970) |
| March. +1 other reference |
March. +1 other reference | |
| USGS |
| The Mineralogy of Pennsylvania 1966-1975 +2 other references |
| Mineralogy of Pennsylvania-1922 +1 other reference |
Mineralogy of Pennsylvania-1922 +1 other reference | |
| Mineralogy of Pennsylvania |
Gordon | |
| Miller |
| Gems & Minerals 395 (August, 1970) |
Eckert (1997) | |
| George (1972) |
| [var: Hyalite] Speer et al. (1987) |
[var: Hyalite] Speer et al. (1987) | |
[var: Hyalite] Speer et al. (1987) | |
| Rocks & Minerals: 60: 117. |
| Personally collected by Franklin Roberts |
| Self-collected by Franklin Roberts. |
Economic Geology +4 other references | |
Roselle M. Girard (1964) | |
| Bullock (1981) |
| Rick Dalrymple |
[var: Hyalite] Nassau K. (1968) | |
| Bullock (1981) +1 other reference |
| Bullock (1981) |
| Palache et al. (1951) +1 other reference |
| [var: Hyalite] Rockpick Legend |
Bullock (1981) | |
Greg Slak specimen | |
| Bullock (1981) |
| |
| Mike Dennis specimens |
| [var: Hyalite] Michael Hatskel Collection |
| |
Gems and Minerals of America-Jay Ellis ... | |
| Dietrich (1990) |
| Dietrich (1990) |
| Dietrich (1990) |
| Dietrich (1990) |
Dietrich (1990) | |
| Dietrich (1990) |
| Dietrich (1990) |
| Dietrich (1990) |
| T Douglas Schonewald Collection |
Personally collected by T Douglas ... | |
| T Douglas Schonewald Collection |
T Douglas Schonewald Collection | |
| Dake (1956) |
| [var: Hyalite] John Lindell field collected specimens |
| www.mindat.org (n.d.) |
| T Douglas Schonewald Collection |
| Sirbescu et al. (2008) |
| Falster (1981) +1 other reference |
| Iddings et al. (1892) |
Vanuatu | |
| R. Martin personal collection |
ValeΔ Hyalite occurrences, ValeΔ, Karlovy Vary District, Karlovy Vary Region, Czech Republic