Bicolor sputnik aragonite, large Agate The colorless material is quartz

The colorless material is quartz

Hydroxyapophyllite specimens are somewhat delicate and may shed pieces

the layers resemble The Monster that Challenged the World (1957)

but it is an excellent piece for studying the details—best for someone with good eyesight

one can see fine needle-like growth that is difficult to capture on camera

Bicolor sputnik aragonite, large Agate The colorless material is quartzLocale: Morocco Approx dimensions: 5. 25 x 2. 5" Approx weight: 568g This variety of aragonite clusters earns its trade name from the resemblance to the Sputnik satellite, with crystals protruding out in all directions. The bicolor variety grows crystals that are red brown and a grayish white color. This piece is long, formed of multiple rounded forms and flat on one side so it stands well for display. There are a lot of areas of broken crystals,