Hartland is a town in Hartford County, Connecticut, United States. Residents petitioned the General Court, and the legislature incorporated the town in May 1761.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

ⓘ 'Stilbite Subgroup'

3 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

ⓘ 'Fulgurite'

Detailed Mineral List:

ⓘ 'Garnet Group'

Formula: X₃Z₂(SiO₄)₃

Reference: John Burnham

Kyanite

Hartland, Hartford County, Connecticut, USA

ⓘ Kyanite

Formula: Al₂(SiO₄)O

Reference: John Burnham

ⓘ Lechatelierite

Formula: SiO₂

Reference: John Burnham

Stellerite

Goodwin Dam, Hartland, Hartford County, Connecticut, USA

ⓘ Stellerite ?

Formula: Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O

Locality: Goodwin Dam (Hogback Dam), Hartland, Hartford County, Connecticut, USA

Habit: tabular prisms

Colour: orange

Description: Crystals to 1 cm coating brecciated gneiss. A sample https://www.mindat.org/photo-709453.html analyzed by SEM-EDS determined to be most likely stellerite because of total lack of Na and K.

Reference: Harold Moritz collection

ⓘ 'Stilbite Subgroup'

Formula: M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O

Locality: Goodwin Dam (Hogback Dam), Hartland, Hartford County, Connecticut, USA

Habit: tabular prisms

Colour: orange

Description: Crystals to 1 cm coating brecciated gneiss.

Reference: Harold Moritz collection

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Lechatelierite	4.DA.30	SiO₂
Group 9 - Silicates
ⓘ	Kyanite	9.AF.15	Al₂(SiO₄)O
ⓘ	Stellerite ?	9.GE.15	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
Unclassified Minerals, Rocks, etc.
ⓘ	'Garnet Group'	-	X₃Z₂(SiO₄)₃
ⓘ	'Stilbite Subgroup'	-	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
H	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
O	Oxygen
O	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
O	ⓘ Kyanite	Al₂(SiO₄)O
O	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
O	ⓘ Lechatelierite	SiO₂
O	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
Al	Aluminium
Al	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
Al	ⓘ Kyanite	Al₂(SiO₄)O
Al	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
Si	Silicon
Si	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
Si	ⓘ Kyanite	Al₂(SiO₄)O
Si	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
Si	ⓘ Lechatelierite	SiO₂
Si	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
Ca	Calcium
Ca	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O

Fossils

This region is too big to display the fossil list, try looking at smaller subregions.

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Hartland,_Connecticut
Wikidata ID:	Q2572348
GeoNames ID:	4835843

Localities in this Region

USA

Connecticut
- Hartford County
  - Hartland
    - Goodwin Dam (Hogback Dam)

Other Regions, Features and Areas that Intersect

North America PlateTectonic Plate

Laurentides DomainDomain

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

Quick NavTop Mineral List Rock Types Fossils Other Databases Localities in Region Other Regions

Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 23, 2024 14:02:08 Page updated: January 24, 2023 00:08:06

Go to top of page

Hartland, Hartford County, Connecticut, USAiRegional Level TypesHartlandCity Hartford CountyCounty ConnecticutState USACountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

Select Mineral List Type

Mineral List

Rock Types Recorded

Select Rock List Type

Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Fossils

Other Databases

Localities in this Region

Other Regions, Features and Areas that Intersect

Hartland, Hartford County, Connecticut, USA i
Regional Level Types
Hartland City
Hartford County County
Connecticut State
USA Country