Dave's Down To Earth Rock Shop Minerals A-B!!!

Minerals
Here are some of the mineral specimens A - B which can be found in Dave's Down to Earth Rock Shop. This extensive and high quality collection contains many unusual points, minerals, and clusters.
We also have Exquisite Crystal Carvings available.
Check out our Glossary!

Click here for Minerals C!
Click here for Minerals D - E!
Click here for Minerals F - H!
Click here for Minerals I - M!
Click here for Minerals N - Q!
Click here for Minerals R - S!
Click here for Minerals T - Z!

Adamite
Location: Mexico
Chemical Composition: Zn2AsO4(OH), Zinc Arsenate Hydroxide
Hardness is 3.5

Agate
Alternate birthstone for May
Location: Mexico
Variety of: Chalcedony
Chemical Composition: SiO2 silicon dioxide
Hardness: 6.5 to 7
Learn more about Agate!

Ajoite in Quartz
Location: Messina Mine
Messina, S. Africa
Quartz with turquoise colored inclusions.
Chemical Composition: (K, Na)Cu7Al(Si3O8) 3(OH)6 - 3H2O, Hydrated Potassium Sodium Copper Aluminum Silicate Hydroxide
Hardness is 3.5

Alexandrite
Location: Russia
Variety of: Chrysoberyl
Chemical Composition: BeAl2O4 + Fe,Ti beryllium aluminum oxide
Hardness: 8.5
Learn more about Alexandrite!

Amazonite with smoky quartz
Location: Lake George Area Colorado, USA
Chemical Composition: KAlSi3O8
Hardness: 6 to 6.5

	Amber Location: Baltic Organic Gemstone Amber comes translucent or opaque, with colors ranging from milky to red, brown, gold or even black, blue, or green Chemical Composition: Approximately C10H16O; Succinic acid Hardness: 2 - 4 Very soft, easy to carve or melt Learn more about Amber!
Amethyst Birthstone for February Location: Bolivia Light to medium delicate purple to lavender. Variety of: Quartz Chemical Composition: SiO2 silicon dioxide Hardness: 7 Learn more about Amethyst!
	Apache Tears Location: Arizona Chemical Composition: Volcanic, amorphous, siliceous glassy rock Hardness: 5 - 5.5

Aquamarine
Birthstone for March
Location: Brazil
Variety of: Beryl
Chemical Composition: Be3 Al2 Si6 O18
Hardness: 7.5 - 8
Learn more about aquamarine!

Atacamite
Location: Chile
Chemical Composition: Cu2Cl(OH)3, Copper Chloride Hydroxide
Hardness is 3 - 3.5

Azurite Nodules
Location: Mexico
Chemical Composition: Cu3(CO3)2(OH)2, Copper Carbonate Hydroxide
Hardness is 3.5-4

Barite
Location: Romania
Vitreous resinous colorless, blue, white, yellow, brown, gray. etc.
Chemical Composition: BaSO4, Barium Sulfate
Hardness is 3 - 3.5

Bloodstone
Alternate March birthstone
Location: India
Variety of: Chalcedony
Chemical Composition: SiO2 with impurities
Hardness: 7
Learn more about bloodstone!

Dave's Down to Earth Rock Shop and
The Prehistoric Life Museum
704 Main Street
Evanston, IL 60202
phone: 847 866 - 7374
fax: 847 866 - 6854

Store Hours:
M, T, Thurs, F: 10:30 - 5:30
Sat: 10:00 - 5:00
Closed Wednesday and Sunday