Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Great Eastern And Mount Jackson Mine (Sonoma Mine; Sonoma Quicksilver Mines; Guerneville Mine; Great Eastern Mine; Mount Jackson Mine), Guerneville, Guerneville District, Coast Range, Sonoma Co., California, USA

mindat Locality ID: 27907
mindat URL: http://www.mindat.org/loc-27907.html

Tectonic Settings:

Total number of sublocalities beneath "Great Eastern And Mount Jackson Mine (Sonoma Mine; Sonoma Quicksilver Mines; Guerneville Mine; Great Eastern Mine; Mount Jackson Mine), Guerneville, Guerneville District, Coast Range, Sonoma Co., California, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 38°30'0"N
Longitude: 123°'"W
Decimal Degree (lat, lon): 38.5,-123

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Amorphous	Baryte	Calcite	Clay	Kaolinite	Millerite	None	Pyrite	Quartz	Sphalerite
Spinel

Ankerite ()*	Baryte ()*	Calcite ()*	Chromite ()*	Cinnabar ()*
Dolomite ()*	Kaolinite ()*	Magnesiochromite ()*	Magnesite ()*	Magnetite ()*
Metacinnabar ()*	Millerite ()*	Opal ()*	Pyrite ()*	Quartz ()*
Vaesite ()*

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al Ba C Ca Cr Fe H Hg Mg Ni O S Si

Elements from minerals reported directly at this locality: Al Ba C Ca Cr Fe H Hg Mg Ni O S Si

Structural Groups for minerals in this locality:
Amorphous Baryte Calcite Clay Kaolinite Millerite None Pyrite Quartz Sphalerite
Spinel

16 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of localities containing mineral
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	3092
Baryte ()*	Baryte	Ba(SO₄)	11547
Calcite ()*	Calcite	Ca(CO₃)	27770
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	3902
Cinnabar ()*	None	HgS	2600
Dolomite ()*	None	CaMg(CO₃)₂	9895
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	5591
Magnesiochromite ()*	Spinel	MgCr₂O₄	311
Magnesite ()*	Calcite	Mg(CO₃)	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	14899
Metacinnabar ()*	Sphalerite	HgS	255
Millerite ()*	Millerite	NiS	1066
Opal ()*	Amorphous	SiO₂·nH₂O	2994
Pyrite ()*	Pyrite	FeS₂	39462
Quartz ()*	Quartz	SiO₂	61156
Vaesite ()*	Pyrite	NiS₂	106

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...