Neotocite
A valid IMA mineral species - grandfathered
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About Neotocite
Formula:
(Mn,Fe,Mg)SiO3 · H2O
Colour:
Black, dark brown to dark olive-green, dark red-brown
Lustre:
Resinous, Waxy, Greasy
Hardness:
3 - 4
Specific Gravity:
2.43
Crystal System:
Amorphous
Name:
Named in 1848 by Nils Adolf Erik Nordenskiöld from the Greek, νεοτοκοζ meaning of recent origin, as it is an alteration product.
Type Locality:
Hisingerite-Neotocite Series.
An amorphous to poorly crystalline, hydrated Mn silicate.
Mn is assumed to be divalent (Brusnitsyn and Egorov, 2023).
An amorphous to poorly crystalline, hydrated Mn silicate.
Mn is assumed to be divalent (Brusnitsyn and Egorov, 2023).
Unique Identifiers
Mindat ID:
2879
Long-form identifier:
mindat:1:1:2879:6
GUID
(UUID V4):
(UUID V4):
2f864178-c29e-4edf-a129-27c7e2b17225
IMA Classification of Neotocite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
(Mn,Fe)SiO3 · H2O (?)
First published:
1849
Classification of Neotocite
9.ED.20
9 : SILICATES (Germanates)
E : Phyllosilicates
D : Phyllosilicates with kaolinite layers composed of tetrahedral and octahedral nets
9 : SILICATES (Germanates)
E : Phyllosilicates
D : Phyllosilicates with kaolinite layers composed of tetrahedral and octahedral nets
71.1.5.4
71 : PHYLLOSILICATES Sheets of Six-Membered Rings
1 : Sheets of 6-membered rings with 1:1 layers
71 : PHYLLOSILICATES Sheets of Six-Membered Rings
1 : Sheets of 6-membered rings with 1:1 layers
14.18.37
14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe
14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Neo | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Neotocite
Resinous, Waxy, Greasy
Transparency:
Transparent, Translucent
Colour:
Black, dark brown to dark olive-green, dark red-brown
Streak:
Dark brown to black
Hardness:
3 - 4 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Conchoidal, Sub-Conchoidal
Density:
2.43 g/cm3 (Measured)
Optical Data of Neotocite
Type:
Isotropic
RI values:
nα = 1.500 - 1.650
Birefringence:
0.00
Surface Relief:
Moderate
Pleochroism:
Non-pleochroic
Chemistry of Neotocite
Mindat Formula:
(Mn,Fe,Mg)SiO3 · H2O
Common Impurities:
Al,Mg,Ca,Na,K,C
Crystallography of Neotocite
Crystal System:
Amorphous
Morphology:
Botryoidal, also resinous brown to black masses or veinlets
Comment:
Amorphous to poorly crystalline; crystal system unknown.
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
4.36 Å | (100b) |
3.59 Å | (100b) |
2.59 Å | (1) |
1.54 Å | (100b) |
Comments:
ICDD 14-172. Indistinguishable from hisingerite.
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Near-surface Processes | |
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23) | |
High-𝑇 alteration and/or metamorphism | |
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits |
Type Occurrence of Neotocite
Reference:
Nordenskjöld, N. (1849) in Ueber das Atomistisch-Chemische Mineral System und das Examinations-System der Mineralien, A. W. Gröndahl (Helsingfors): 1-157.
Synonyms of Neotocite
Other Language Names for Neotocite
Varieties of Neotocite
Chinglusuite | A compositional variety of neotocite (Burke, 2006). |
Relationship of Neotocite to other Species
Forms a series with:
Common Associates
Associated Minerals Based on Photo Data:
18 photos of Neotocite associated with Rhodochrosite | MnCO3 |
11 photos of Neotocite associated with Rhodonite | CaMn3Mn[Si5O15] |
8 photos of Neotocite associated with Ussingite | Na2AlSi3O8OH |
5 photos of Neotocite associated with Parsettensite | (K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50 · nH2O |
5 photos of Neotocite associated with Quartz | SiO2 |
4 photos of Neotocite associated with Serandite | NaMn2+2Si3O8(OH) |
4 photos of Neotocite associated with Pyrite | FeS2 |
4 photos of Neotocite associated with Kutnohorite | CaMn2+(CO3)2 |
4 photos of Neotocite associated with Vuonnemite | Na11Ti4+Nb2(Si2O7)2(PO4)2O3(F,OH) |
4 photos of Neotocite associated with Caryopilite | Mn2+3Si2O5(OH)4 |
Related Minerals - Strunz-mindat Grouping
9.ED. | Clinochrysotile | |
9.ED.05 | Dickite | Al2(Si2O5)(OH)4 |
9.ED.05 | Kaolinite | Al2(Si2O5)(OH)4 |
9.ED.05 | Nacrite | Al2(Si2O5)(OH)4 |
9.ED.05 | Odinite | (Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4 |
9.ED.10 | Halloysite | Al2(Si2O5)(OH)4 |
9.ED.10 | Hisingerite | Fe3+2(Si2O5)(OH)4 · 2H2O |
9.ED.10 | Hydrohalloysite | Al2Si2O5(OH)4 · 2H2O |
9.ED.15 | Amesite | Mg2Al(AlSiO5)(OH)4 |
9.ED.15 | Antigorite | Mg3(Si2O5)(OH)4 |
9.ED.15 | Berthierine | (Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4 |
9.ED.15 | Brindleyite | (Ni,Al)3(Si,Al)2O5(OH)4 |
9.ED.15 | Caryopilite | Mn2+3Si2O5(OH)4 |
9.ED.15 | Cronstedtite | Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4 |
9.ED.15 | Fraipontite | (Zn,Al)3((Si,Al)2O5)(OH)4 |
9.ED.15 | Greenalite | (Fe2+,Fe3+)2-3Si2O5(OH)4 |
9.ED.15 | Kellyite | Mn2+2Al(AlSiO5)(OH)4 |
9.ED.15 | Lizardite | Mg3(Si2O5)(OH)4 |
9.ED.15 | Manandonite | Li2Al4(Si2AlB)O10(OH)8 |
9.ED.15 | Népouite | Ni3Si2O5(OH)4 |
9.ED.15 | Pecoraite | Ni3(Si2O5)(OH)4 |
9.ED.15 | Guidottiite | Mn2Fe3+(Fe3+SiO5)(OH)4 |
9.ED.15 va | Chromoamesite | Mg2(Al,Cr)(AlSiO5)(OH)4 |
9.ED.20 | Allophane | (Al2O3)(SiO2)1.3-2 · 2.5-3H2O |
9.ED.20 | Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
9.ED.20 | Imogolite | Al2SiO3(OH)4 |
9.ED.25 | Bismutoferrite | Fe3+2Bi(SiO4)2(OH) |
9.ED.25 | Chapmanite | Fe3+2Sb3+(Si2O5)O3(OH) |
9.ED.30 | Pianlinite | Al2Si2O6(OH)2 |
Fluorescence of Neotocite
Not fluorescent in ultraviolet
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 Neotocite
mindat.org URL:
https://www.mindat.org/min-2879.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Neotocite
Localities for Neotocite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - 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.
Argentina | |
| Singer et al. (2008) |
| Sureda |
| Sillitoe et al. (2019) |
Australia | |
| Singer et al. (2005) |
| Coombs et al. (2009) |
| Brown et al. (1992) |
| Birch (1999) |
| Vera Munro-Smith (2006) |
| Den (1977) |
| Singer et al. (2008) |
| Singer et al. (2008) |
Austria | |
| C.Auer (2016) |
Brazil | |
| Min Rec 39:125-130 |
acd.ufrj.br (2002) | |
Bulgaria | |
| Marcus Voigt Collection |
Aleksiev (1967) | |
| Collection Voigt +1 other reference |
Canada | |
| personal correspondence with Giles Peatfield (see comments in description) |
| Horváth et al. (1990) |
| Singer et al. (2008) |
Chile | |
| Singer et al. (2008) |
| Sulphides analysed by geology dep. of ... +1 other reference |
China | |
| Zhao Zhenhua and Tu Guangzhi (1996) |
Cuba | |
| www.minsocam.org |
Czech Republic | |
| Povondra +1 other reference |
Zak (1956) | |
DR Congo | |
| Färber (n.d.) |
Ecuador | |
| Singer et al. (2008) |
Singer et al. (2008) | |
Fiji | |
| Leggo (1977) +1 other reference |
Finland | |
| Heikkilä |
| Nordenskiöld (1855) +1 other reference |
France | |
| Chopin (1978) |
| Chopin (1978) |
Germany | |
| SEM-EDS et al. (H2O) |
| Glass et al. (1939) |
| Witzke (2013) |
Italy | |
| M.E. Ciriotti selfcollected 2005 |
| Piccoli et al. (2007) |
| Redazionale (2005) |
415. +1 other reference | |
| 415 (354) +1 other reference |
| //doi.org/10.57635/MICRO.2023.21.7 |
| |
| Castellaro et al. (2011) |
| Antofilli et al. (1983) |
| Piccoli et al. (2007) +1 other reference |
| Cámara et al. (2017) |
| Ambrino et al. (2010) |
| Ambrino et al. (2022) |
| Ferretti et al. (2018) |
| Bonifazi (2020) |
| Bonifazi (2020) |
| Boscardin M. et al. (Vicenza) |
Japan | |
| Yamada collection (Crystal World, Japan) |
| M. Nakagawa et al. (2009) |
| Mineralogical Journal Vol. 18 (1996) |
| Alfredo Petrov collection |
Donald E. Lee (1955) | |
| Katsu Kaneko (1956) +1 other reference |
| Suzaki et al. (1969) |
| Dr. Matsuo Nambu collection (curated at Geological Survey of Japan) |
Fukuoka (1981) | |
Nambu et al. (1961) | |
| Bull. Soc. Franç. Minéralo. ... |
| Excalibur Mineral Co. specimens +2 other references |
| Dr. Matsuo Nambu collection (curated at Geological Survey of Japan) |
| Dr. Matsuo Nambu collection (curated at Geological Survey of Japan) |
| Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan) |
Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan) | |
| Kaneko (1956) |
| Josef Vajdak collection (obtained from Minerals Unlimites, via the Joe Cilen collection # 11,432) |
M. Nakagawa et al. (2009) | |
| Yamada (2004) |
| Yoshinaga (1963) |
| Dr. Kameki Kinoshita collection (curated at Geological Survey of Japan) +1 other reference |
| Uehara et al. (2014) |
| K. Nishikubo et al. (2005) |
| Takaharu Araki collection +1 other reference |
| Symposium sobre yacimientos de manganeso et al. (1956) |
| Dr. Yohachiro Okamoto collection (curated at Geological Survey museum, Japan) +1 other reference |
| Hiroaki Tano specimens +1 other reference |
| Akira Kato (undated manuscript) +1 other reference |
| Yoshimura (1969) |
| Bull. Kanagawa pref. Mus. (Nat. Sci.) |
| Lee (1955) +1 other reference |
Lee (1955) +1 other reference | |
| Fumitoshi HIROWATARI (1961) |
Lee (1955) +1 other reference | |
Mayumi Yoshinaga (1963) | |
H. Momoi (1964) | |
Kazakhstan | |
| Kayupova (1965) |
Kayupova (1964) | |
| V.V. Kalinin data +1 other reference |
Mexico | |
| Singer et al. (2008) |
| |
| Espinosa Perea (1999) +1 other reference |
| Singer et al. (2008) |
| Valencia et al. (2006) +2 other references |
Norway | |
| Breivik et al. (2007) |
| Nordrum (2009) |
| Larsen et al. (2005) |
Larsen et al. (2005) | |
| Berge (n.d.) |
| Larsen et al. (2010) |
Larsen et al. (2005) | |
Larsen et al. (2010) | |
Nordrum (2008) +1 other reference | |
Pakistan | |
| Singer et al. (2008) |
| Singer et al. (2008) |
Papua New Guinea | |
| Singer et al. (2008) |
Peru | |
| Singer et al. (2008) |
| www.portergeo.com.au (2007) |
| Miofuvhoedki (2001) |
| Singer et al. (2008) |
| Hyrsl et al. (2003) |
Philippines | |
| Singer et al. (2008) |
| Singer et al. (2008) |
Romania | |
| Hârtopanu et al. (1996) |
| Udubasa et al. (1996) +2 other references |
| Hârtopanu et al. (1996) +1 other reference |
| minerals-of-the-carpathians.eu (2008) |
Ex Csanad Loranth Coll. who collected and ID it (XRD) +1 other reference | |
Russia | |
| Brusnitsyn et al. (2009) |
| Brusnitsyn (2006) |
| Dicken et al. (2016) |
| Afanas'ev +2 other references |
| Pekov et al. (2004) |
Mineral News (2011) | |
... | |
| Pavel M. Kartashov |
| Старикова (2011) |
| Perevoznikova et al. (2009) |
| Brusnitsyn (2000) |
| Brusnitsyn A.I. (2000) |
| Brusnitsyn A.I. (2000) |
Slovakia | |
| Martin Števko-unpublished |
Spain | |
| Joan Abella i Creus (2012) |
Sweden (TL) | |
| Fleischer's Glossary of Mineral Species ... |
| |
| |
| Natural History Museum |
| Iglström (1851) +1 other reference |
| Nysten (2020) |
| |
Switzerland | |
| Brugger J. (1996) |
| Roth et al. (2011) |
UK | |
| Collins (1878) +4 other references |
| Golley et al. (1995) |
| Clark |
USA | |
| - (2008) |
| Simons (1963) +1 other reference |
| MRDS database Dep. ID #10026888. |
| I.S Merkel |
| Walder et al. (2004) |
Merritt Stephen Enders (2000) | |
| Thomas et al. (1983) +1 other reference |
| Jones (1983) |
| Rocks and Minerals (1988) |
| - (2005) |
| - (2005) |
| - (2005) |
| Van Nostrand Reinholt Press: 415. +3 other references |
| Van Nostrand Reinholt Press: 415 +3 other references |
| Murdoch (1966) |
Murdoch (1966) | |
| Van Nostrand Reinholt Press: 415. +2 other references |
| Murdoch (1966) |
| - (2005) |
| Cal Div of Mines & Geo Bulletin 189 " ... |
| Van Nostrand Reinholt Press: 415. +2 other references |
| Van Nostrand Reinholt Press: 415. +2 other references |
| Van Nostrand Reinholt Press: 415. +2 other references |
| Van Nostrand Reinholt Press: 415. +2 other references |
| Huebner +3 other references |
| Dunning and Cooper (1987) |
| - (2005) |
| Huebner +3 other references |
| - (2005) |
| Pavlides |
| Pavlides |
Pavlides +1 other reference | |
| Quinn (1945) |
| Heinrich et al. (2004) |
R. Kelley Laughlin | |
... | |
| James et al. (1970) |
Morris Jr. (1983) | |
| Heinrich et al. (2004) |
Heinrich et al. (2004) | |
| Heinrich et al. (2004) |
| NBMG Bull 62 Geology and Mineral ... |
| Dr. William S. Wise presentation to ... |
| Castor et al. (2004) |
| Dunn (1995) |
Palache (1935) +1 other reference | |
| Dunn (1995) |
| Northrop et al. (1996) |
| Northrop et al. (1996) |
| Ross et al. (1932) |
| Mineralogical Record |
| Rocks & Min. vol. 72 (1997) |
| R&M 72:4 pp 252-264 |
| Brown |
| Marshall T. Huntting +1 other reference |
Derkey et al. (1990, November) | |
Valentine et al. (1960) | |
| Derkey et al. (1990, November) |
Marshall T. Huntting +1 other reference | |
Marshall T. Huntting +1 other reference | |
Cannon (1975) | |
Marshall T. Huntting +1 other reference | |
Cannon (1975) | |
Derkey et al. (1990, November) +1 other reference | |
| Cannon (1975) |
Glass et al. (1939) | |
| Derkey et al. (1990, November) +1 other reference |
Derkey et al. (1990, November) +1 other reference | |
| Derkey et al. (1990, November) +1 other reference |
| R. Derkey +3 other references |
| Cordua +1 other reference |
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Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy