What you will receive:
You will receive a 5ml glass vial of Shale Rock in a slate chunk like form as seen in pictures.

• Sweet Stocking stuffer, Christmas gift
• Great chemistry gift
• Amazing science gift
• Teacher gift

The Facts:
• Shale is a fine-grained, clastic sedimentary rock composed of mud that is a mix of flakes of clay minerals and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite. The ratio of clay to other minerals varies.
•The process in the rock cycle which forms shale is called compaction.
•Fossils, animal tracks/burrows and even raindrop impact craters are sometimes preserved on shale bedding surfaces. Shales may also contain concretions consisting of pyrite, apatite, or various carbonate minerals
•Shales that are subject to heat and pressure of metamorphism alter into a hard, fissile, metamorphic rock known as slate.
•Shales are typically composed of variable amounts of clay minerals and quartz grains and the typical color is gray. Addition of variable amounts of minor constituents alters the color of the rock. Black shale results from the presence of greater than one percent carbonaceous material and indicates a reducing environment.
•Black shale can also be referred to as black metal. Red, brown and green colors are indicative of ferric oxide (hematite – reds), iron hydroxide (goethite – browns and limonite – yellow), or micaceous minerals (chlorite, biotite and illite – greens).
•Some black shales contain abundant heavy metals such as molybdenum, uranium, vanadium, and zinc. The enriched values are of controversial origin, having been alternatively attributed to input from hydrothermal fluids during or after sedimentation or to slow accumulation from sea water over long periods of sedimentation
• Before the mid 19th century, the terms slate, shale and schist were not sharply distinguished. In the context of underground coal mining, shale was frequently referred to as slate well into the 20th century
•This is high quality yet cheap affordable shale.


Safety / Caution:
Keep out of reach of children. Do not ingest.

Shipping:
Expertly packed to ensure you get your items safe and sound.
Free domestic shipping, International will be calculated at checkout.