From simple cubes to complex twinned dodecahedrons, pyrite appears in over a half dozen different forms. And it is certainly found in countless deposits all over the world. Pyrite is so varied and common any collector could devote an entire collecting career to this one species. Chemically pyrite is not complicated. One molecule of pyrite is composed of one atom of iron and two atoms of sulfur, iron disulfide.
What is complex about pyrite is the many crystal forms it can take and still remain in the isometric or cubic crystal system! Some pyrite crystals differ enough to be given odd names like iron cross and oscillating cubes, pyrite suns, pyrite bars and pyritized fossils. Yet cubic pyrite’s most common and very recognizable crystal form is pyritohedron. Instead of having a square crystal face of a cube as you would expect, pyritohedron faces are five-sided. Luckily today, thanks to one important deposit in Spain, the most common form for pyrite available is simply a cube on a white marl matrix.
COMMON CUBES
Bu hikaye Rock&Gem Magazine dergisinin June 2021 sayısından alınmıştır.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber ? Giriş Yap
Bu hikaye Rock&Gem Magazine dergisinin June 2021 sayısından alınmıştır.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber? Giriş Yap
This News is for the Birds
The amazing range of the would-be birds!
CALIFORNIA MAGNESITE PLASMA AGATE
California magnesite plasma agate is a kaleidoscope of minerals. Much like its neighbor from Clear Creek, it contains chalcedony, serpentine, jadeite and chromite.
HOW TO CREATE A CABBING MATERIAL
Even though Mother Nature creates almost unbounded types and numbers of beautiful materials for cabbing, often I struggle to find a slab that will work for the project that I want to do.
PINWHEEL - VIET GEMS 149
I am frequently asked what my favorite gemstone designs are and where to find them. After my trip to the Tucson Gem and Mineral Show, I updated my list of favorites to include gemstone designer, Phan Thanh Trung.
Copper Minerals: My Favorite
I have lived in the “Copper State” of Arizona for 65 years so it should not surprise readers that copper minerals are among my favorites to collect.
OPPENHEIMER, TRINITY SITE AND TRINITITE
The widely acclaimed, 2023 Hollywood biographical movie Oppenheimer recently won seven Academy Awards including Best Picture and Best Actor (Cillian Murphy).
Clearing ,Smudging & Setting Intentions for Stones
Why do you believe what you believe? Are your beliefs true because you choose to believe them? Whether it is religion, science or the metaphysical, your belief and faith make it real to you in mind, body and soul.
Rhode Island's Hobbit Stone Age
Rhode Island may be 22nd out of 30 states in miles of total coastline but when you compare coastline length to land acres, it ranks second only to Maryland.
Black Range Amethyst
Amethyst in Southwest New Mexico
EQUINE Bling!
How an Oklahoma Saddle Maker Uses Moissanite, Gold, Silver Turquoise tc to Adorn Saddles Jewelry