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September 18, 2016 Weekly Geolgy Guess: BLUE

September 18, 2016

Greetings from the Bluff Park Back Porch, way up yonder on Shades Mountain (1,109′) in Alabama:

We will take a break from our chase up the Geologic Column.

I will concentrate on the minerals with blue, or sort of, colors.

Enjoy, I will try and a write up on each.

I show at least 86 blue minerals.

http://www.minerals.net/minerals-Blue-color.aspx

Enjoy

“Beryl is a mineral composed of berylliumaluminiumcyclosilicate with the chemical formula Be3Al2(Si O3)6.  The pale blue color of aquamarine is attributed to Fe2+. Fe3+ ion”

https://scontent-mia1-2.xx.fbcdn.net/v/t1.0-0/p235x350/14021744_1074441252646135_1789245815637915642_n.jpg?oh=2891d28f41bb895272335a8765b4a4e9&oe=583A7DAF

International Gem Society

August 23 at 6:45pm ·

The Witch Stone in Blue • Afghan Aquamarine • 7.50 carats • Jeffrey Hunt

“Tourmaline (pronunciation: /ˈtʊərməln/ TOOR-mə-leen) is a crystallineboronsilicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. The copper ion gives tourmaline that greenish color.

International Gem Society

February 23, 2015 ·

John Dyer for John Dyer & Co. takes 1st place in the Innovative Faceting category at the AGTA Cutting Edge / Spectrum Awards for 2015!

His entry was this 63.19ct The pale blue color of aquamarine is attributed to Fe2+. Fe3+ ions from Mozambique in a StarBrite cut.

Talc, also called soap stone.

Talc is a claymineral composed of hydratedmagnesiumsilicate with the chemical formula H2Mg3(SiO3)4 or Mg3Si4O10(OH)2.

Yoshihiro Kobayashi to The Rockhound Connection

7 hrs ·

Talc from Argonaut Mine, Ludlow, Windsor County, Vermont.

Topaz is a silicate mineral of aluminium and fluorine with the chemical formulaAl2SiO4(F,OH)2.

International Gem Society

September 1 at 6:50pm ·

Check out this gorgeous custom cut London Blue Topaz done my master gem cutter Jeff Davies Gems Jewellery.

Sapphire is a gemstone variety of the mineral corundum, an aluminium oxide (α-Al2O3). Whilst typically associated with the color blue, natural “fancy” sapphires also occur in yellow, purple, orange, and green colors; “parti sapphires” show two or more colors. The only color which sapphire cannot be is red – as red colored corundum is called ruby,[2] another corundum variety.

International Gem Society updated their cover photo.

September 1 at 3:05pm ·

Sapphire – the favorite stone of September

Superb blue facet rough Sapphire via Gem Line Inc.

 

Obsidian is a naturally occurring volcanic glass formed as an extrusiveigneous rock.

Troy Newman

Yesterday at 9:17pm ·

This stunning Lassen Creek electric blue obsidian piece was created by Pat Antuzzi. Obsidian mined by OUTLAW ROCKS

Boleite is a complex halide mineral with formula: KPb26Ag9Cu24(OH)48Cl62.

Crystal Serenity / Gemsheal

Yesterday at 8:51am

Blue garnet, right?

Sure has a similar looking bod as a garnet.

Say hello to BOLEITE, a hydrated lead copper silver chloride hydroxide.

Boleite is a member of the halide family of minerals.

Halides refer to a group of elements that usually have a charge of negative one when chemically combined with other minerals.

A halide is a chemical compound of halogens bonded to more electro positive elements

Halogens that are most commonly found in nature are fluorine, chlorine, iodine and bromine.

Halide minerals tend to have simple and highly symmetrical structures. The most well known halide mineral is halite, the crystalline form of salt (NaCl).

Boleites are classified as a tetragonal minerals (rectangular box shaped crystals) To make things more confusing, they are also pseudocubically twinned which means that each cube-like crystal of boleite is actually composed of three rectangular boxes oriented at right angles to each other.

I know… too much chemistry… for me too.

Boleite’s chemical composition is a long laundry list. Take a look…KPb26Ag9Cu24(OH)48Cl62 (potassium, lots of lead, silver, copper, oxygen, hydrogen and clorine.

Boleite was named after the locality where it was first discovered…Boleo in Baja California Sur, Mexico.

Hey, there’s more… With thanks to Barbara for “digging up” more info on BOLEITE..

Boleite works well on the Third Eye Chakra. It helps develop this Chakra, and it helps give you the knowledge that you will easily return to the physical world after using your Third Eye Chakra; that no harm will come to you. This crystal helps give you courage, allowing you to function in those circumstances where courage is needed without feeling the fear that would normally accompany such a situation. This crystal also works well on the Throat Chakra.

Vibration: 5
Astrological Sign: Taurus

https://www.metaphysicalrealm1.com/boleite1.html

 

 

Tanzanite is the blue/violet variety of the mineralzoisite (a calcium aluminium hydroxyl Sorosilicate) belonging to the epidote group.

Huge tanzanite crystal displayed at the sant marie aux mines show in france! seeing a tanzanite crystal in this size is extremely rare!

“Chalcedony (pronunciation: /kælˈsɛdəni/) is a cryptocrystalline form of silica, composed of very fine intergrowths of quartz and moganite.[2] These are both silica minerals, but they differ in that quartz has a trigonal crystal structure, while moganite is monoclinic. Chalcedony’s standard chemical structure (based on the chemical structure of quartz) is SiO2 (silicon dioxide).”

Blue Chalcedony Geode. Richard Nass‘s photo.

 

“Sapphire is a gemstone variety of the mineral corundum, an aluminium oxide (α-Al2O3). Whilst typically associated with the color blue, natural “fancy” sapphires also occur in yellow, purple, orange, and green colors; “parti sapphires” show two or more colors. The only color which sapphire cannot be is red – as red colored corundum is called ruby,[2] another corundum variety.”

Brian J. Williams to The Rockhound Connection

Yesterday at 12:21am ·

Star Sapphire Blues

 

 

 

“Hauyne, haüyne (pronunciation: /ɑːˈwin/[6]), hauynite or haüynite is a tectosilicate mineral with sulfate, with endmember formula Na3Ca(Si3Al3)O12(SO4).[“

Crystal Pride

Yesterday at 6:15am ·

WOW Wednesday
Amazing Haüyne, From Rhineland-Palatinate, Germany.

Photo by: Enrico Bonacina
Geology Wonders

Thanks,

Randall

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