$38.00 AUD
Cijena

ARGONITE CLUSTER SPECIMEN 1143.15 CARATS RT 1344

4627
1

SKU
Dimenzije (mm)
83.000 x 62.000 x 43.000mm
Težina (cts)
1143.150
Boje

This is a natural specimen from Morocco showing strong cluster of crystal development.

Size 83x62x43 mm app

Aragonite occurs in two distinct places Spain and Morocco. This crystal cluster is from a pocket in a Moroccan lava bed, where it formed at high pressure and relatively low temperature. At surface conditions, aragonite is actually metastable, and heating it to 400°C will make it revert to calcite. The other point of interest about these crystals is that they are multiple twins that make these pseudo-hexagons. Single aragonite crystals are shaped more like tablets or prisms.

Aragonite is calcium carbonate with the same chemical formula as calcite, but its carbonate ions are packed differently. That is, aragonite and calcite are polymorphs of calcium carbonate. It is harder than calcite (3.5 to 4, rather than 3, on the Mohs scale) and somewhat denser, but like calcite it responds to weak acid by vigorous bubbling. You may pronounce it a-RAG-onite or AR-agonite, though the majority of American geologists use the first pronunciation. It is named for Aragon, in Spain, where notable crystals occur.

Pružatelj usluge dostave Dostava Australia Dostava u ostatak svijeta
Express Shipping $12.00 / 2 $39.00 / 10
Australia
Express Shipping je snižen na $12.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
Express Shipping je snižen na $39.00 na narudžbe s 2 ili više artikala
Registered Shipping $9.00 / 7 $16.00 / 21
Australia
Registered Shipping je snižen na $9.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
Registered Shipping je snižen na $16.00 na narudžbe s 2 ili više artikala

mygems
Mermaid Waters , Australia
Provjereno
1682 povratne informacije

  • andrem
    andrem
    Pozitivan

    Amazing customer service to sort out a hitch with mailing. Opal arrived today. Thank-you for going the extra mile!

  • markvickershah
    markvickershah
    Pozitivan

    Paid and shipped - no feedback left after 100 days

  • markvickershah
    markvickershah
    Pozitivan

    Paid and shipped - no feedback left after 100 days

  • idoc
    idoc
    Pozitivan

    Paid and shipped - no feedback left after 100 days

15%
Kod kupona GEMDEALS
Vrijedi do
2nd Jan 2025

Revizija

Program Treasure Sheriff omogućuje našim članovima da zatraže reviziju bilo kojeg proizvoda, koju dovršava neovisna Fashionista koja procjenjuje točnost opisa artikla i slika.

Detalji dostave

dostava:
$16.00 21 days putem Registered Shipping
Brodovi iz:
Australia

Načini plačanja

  • paypal

Pregled

Vrsta unosa : Standard
Identifikacijski broj proizvoda : 3106
Počinje : 10th December 2024 12:55 pm AEST
* Sve cijene su u AUD