What is laumontite used for?
Cations such as calcium, sodium, and potassium readily replace one another in the structure, making laumontite useful in water softeners.
Where is laumontite found?
Wisconsin
Laumontite readily dehydrates to a chalky material called leonhardite. All of the known Wisconsin localities for laumontite are in the Keweenawan volcanic terrain in the northern part of the state.
What is laumontite mineral?
Laumontite is a mineral, one of the zeolite group. Its molecular formula is Ca(AlSi 2O 6) 2 ยท 4H 2O, a hydrated calcium-aluminium silicate. Potassium or sodium may substitute for the calcium but only in very small amounts. It is monoclinic, space group C2/m.
What is limonite after pyrite?
Limonite, a mixture of hydrated iron oxides, has replaced the Pyrite. However, the Limonite pseudomorphs retain the shape and form of the original Pyrite crystals. These specimens were weathering out of a mineralized vein in the Early Cambrian Reed Dolomite in the White Mountains.
Where can you find Thomsonite stone?
Thomsonite can be found locally on the beaches between Lutsen and Grand Marais, on Isle Royal, Michigan and near Saxon Falls and the Montreal River Gorge on the Keweenaw Peninsula in Michigan.
What is Franklinite used for?
THE MINERAL FRANKLINITE Franklinite is one of the minerals found at Franklin, New Jersey, a world famous locality that has produced many formerly unknown and exotic mineral species. It is found in large enough quantity to serve as a ore of zinc and manganese, two important strategic and industrial metals.
Does limonite contain gold?
In this deposit, gold is present as electrum in limonite (fig. 8) associated with quartz, calcite, and secondary copper minerals.
Is mordenite toxic?
These properties make fibrous mordenite potentially toxic and exposure to its fibers can be associated with deadly diseases such as those associated with regulated mineral fibers.
How do you recharge zeolite pellets?
The zeolite used in freshwater aquariums can be recharged by soaking it in a 5% salt solution, which causes it to release the ammonia it has absorbed. After soaking for 24 hours spread it on a cookie tray and allow it to dry in the sun for a day or two.
How do I identify my thomsonite?
The crystal system of thomsonite is orthorhombic. The Mohs hardness is 5 to 5.5. It is transparent to translucent and has a density of 2.3 to 2.4….
| Thomsonite | |
|---|---|
| Crystal class | Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m) |
| Identification | |
| Color | colorless, white, beige, and pink |
| Cleavage | perfect on {010}; good on {100} |
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