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:
Johnston, Providence Co., Rhode Island, USA

mindat Locality ID: 29688
mindat URL: http://www.mindat.org/loc-29688.html

Tectonic Settings:

Total number of sublocalities beneath "Johnston, Providence Co., Rhode Island, USA": 13
Total number of bottom-level sublocalities: 11

Number of Child Localities: 10
Child Localities:
Angell Farm
Brown Lime Quarry
Graniteville
Hi-Lo Construction Co. Quarry
Interstate 295 / US Route 6 Road Cuts
Jenkins Lime Quarry
Mineral Spring Ave. Locality
Ochee Spring Quarry (Johnston Soapstone Quarry)
Smith St. Locality
Snake Den

Latitude: 41°50'54"N
Longitude: 71°32'10"W
Decimal Degree (lat, lon): 41.848333333333,-71.536111111111

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	Amphibole	Apatite	Axinite	Baryte	Beryl	Calcite	Chalcopyrite	Chlorite	Clay
Clinozoisite	Corundum	Diaspore	Epidote	Feldspar	Fluorite	Malachite	Mica	Molybdenite	Nickeline
None	Not in a structural group	Pyrite	Quartz	Rocksalt	Scheelite	Serpentine	Sphalerite	Spinel	Staurolite
Talc	Titanite	Tourmaline	Wurtzite	Zircon

Actinolite ()*	Albite ()*	Anatase ()*	Ankerite ()*	Anthophyllite ()*
Antigorite ()*	Axinite-(Fe) ()*	Baryte ()*	Bertrandite ()*	Beryl ()*
Calcite ()*	Chalcopyrite ()*	Clinochlore ()*	Dolomite ()*	Epidote ()*
Fluorapatite ()*	Fluorite ()*	Galena ()*	Goethite ()*	Greenockite ()*
Hematite ()*	Ilmenite ()*	Jamesonite ()*	Magnetite ()*	Malachite ()*
Microcline ()*	Molybdenite ()*	Muscovite ()*	Opal ()*	Orthoclase ()*
Powellite ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*	Scheelite ()*
Schorl ()*	Siderite ()*	Sphalerite ()*	Staurolite ()*	Talc ()*
Titanite ()*	Tremolite ()*	Zircon ()*

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 B Ba Be C Ca Cd Cu F Fe H K Mg Mo Na O P Pb S Sb Si Ti W Zn Zr

Elements from minerals reported directly at this locality: Al B Ca Cd Fe H Mo Na O S Si

Structural Groups for minerals in this locality:
Amorphous Amphibole Apatite Axinite Baryte Beryl Calcite Chalcopyrite Chlorite Clay
Clinozoisite Corundum Diaspore Epidote Feldspar Fluorite Malachite Mica Molybdenite Nickeline
None Not in a structural group Pyrite Quartz Rocksalt Scheelite Serpentine Sphalerite Spinel Staurolite
Talc Titanite Tourmaline Wurtzite Zircon

43 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	4	263518,263522,263525,263526	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	2	263520,263522	8803
Anatase ()*	Not in a structural group	TiO₂	1	263522	2162
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	1	263525	3092
Anthophyllite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	1	263525	718
Antigorite ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	3	263518,263522,263523	708
Axinite-(Fe) ()*	Axinite	Ca₄Fe²⁺₂Al₄[B₂Si₈O₃₀](OH)₂	1	263521	260
Baryte ()*	Baryte	Ba(SO₄)	1	263522	11547
Bertrandite ()*	Not in a structural group	Be₄Si₂O₇(OH)₂	1	263522	606
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	1	263522	4286
Calcite ()*	Calcite	Ca(CO₃)	4	263522,263524,263525,263526	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	4	263518,263522,263524,263526	27198
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	5	263517,263518,263521,263522,263525	1756
Dolomite ()*	None	CaMg(CO₃)₂	1	263525	9895
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	5	263520,263521,263522,263524,263526	8173
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	2	263521,263522	2740
Fluorite ()*	Fluorite	CaF₂	1	263522	9617
Galena ()*	Rocksalt	PbS	1	263522	24243
Goethite ()*	Diaspore	FeO(OH)	1	263522	7437
Greenockite ()*	Wurtzite	CdS	0		717
Hematite ()*	Corundum	Fe₂O₃	2	263522,263525	14640
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	1	263522	5433
Jamesonite ()*	None	Pb₄FeSb₆S₁₄	1	263528	784
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	5	263517,263518,263522,263525,263526	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	1	263518	12537
Microcline ()*	Feldspar	K(AlSi₃O₈)	2	263520,263522	4924
Molybdenite ()*	Molybdenite	MoS₂	1	263522	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1	263522	17380
Opal ()*	Amorphous	SiO₂·nH₂O	1	263522	2994
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	1	263526	2349
Powellite ()*	Scheelite	Ca(MoO₄)	0		494
Pyrite ()*	Pyrite	FeS₂	3	263522,263525,263526	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	1	263522	9056
Quartz ()*	Quartz	SiO₂	5	263520,263522,263524,263526,263528	61156
Scheelite ()*	Scheelite	Ca(WO₄)	1	263522	4894
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	0		2705
Siderite ()*	Calcite	Fe(CO₃)	2	263522,263525	6417
Sphalerite ()*	Sphalerite	ZnS	1	263522	21482
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	1	263520	978
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	4	263518,263522,263523,263525	3337
Titanite ()*	Titanite	CaTi(SiO₄)O	1	263522	4899
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	2	263524,263525	2562
Zircon ()*	Zircon	Zr(SiO₄)	1	263522	5251

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...