THE PREMIER MARKETPLACE FOR REAL GEMS
$55.00 USD
Prezzo

NATURAL CRYSTAL WITH INCLUSIONS TERMINATED103.10CTS [MX9207]

3477
3

SKU
Dimensioni (mm)
x x mm
Peso (cts)
Colori

MINERAL GEM WORLD

CRYSTAL WITH INCLUSIONS

This is a natural untreated crystal from Brazil showing great terminations with a fiborous inclusion in the base-great specimen.

Weight 103.10 cts app

Size 55 x 16 x 13 mm app

Quartz grows in many environments along with many different minerals. These minerals, as well as watery solutions and gas bubbles, can be enclosed by the growing crystal.
Many minerals that would otherwise be chemically altered or dissolved when the local conditions change are protected from aggressive chemical agents when they have been embedded inside quartz crystals. Likewise, fragile minerals that are very soft, crumbly or that occur as fibers or thin needles survive inside. Other partially embedded minerals might get dissolved at a later stage and leave ghostlike hollow forms behind.

There are basically three ways inclusions can "get into the crystal":

  • The minerals have formed before the quartz. The growing quartz crystals engulfs them and the original form of the included minerals is preserved. These inclusions are called protogenetic. Included fibers than run through the entire crystal at random orientations are typical examples.
  • Quartz crystals and the included minerals grow simultaneously. These inclusions are called syngenetic. The shape of the included minerals often deviates from the typical forms and habits that develop during unhindered growth. Crystals may be distorted beyond recognition and a non-destructive identification may pose a real problem even for a mineralogist.
    Sometimes inclusions cause the formation of phantoms. Here the quartz crystal might have been partially encrusted by another mineral when growth halted transiently and continued later, such a case could be considered a syngenetical formation that got overgrown.
  • Minerals can get into another mineral by exsolution. When the conditions during crystal growth allowed the incorporation of elements into the crystal lattice that are incompatible with the crystal structure at different temperatures or pressures, these elements may separate from the lattice to form new minerals once the conditions change. Such inclusions are called epigenetic. Very often these inclusions are specifically oriented with respect to the crystallographic axes of the main crystal. The best example of a quartz with epigenetic inclusions is rose quartz.
  • Fornitore di spedizioni Spedizione a Australia Spedizione nel resto del mondo
    FedEx $12.00 / 3 giorni $39.00 / 10 giorni
    Australia
    FedEx è scontato a $12.00 sugli ordini con 2 o più articoli
    Resto del mondo
    FedEx è scontato a $39.00 sugli ordini con 2 o più articoli
    Registered Shipping $9.00 / 7 giorni $16.00 / 21 giorni
    Australia
    Registered Shipping è scontato a $9.00 sugli ordini con 2 o più articoli
    Resto del mondo
    Registered Shipping è scontato a $16.00 sugli ordini con 2 o più articoli

    sedagems
    Hi Welcome to the Sedagems store, Run by Paul Sedawie and specializing in Australian sapphires and gems stones he has collected on his many buying trips world wide. All stock has a money back guarantee as your continued business is our business.
    Mermaid Waters , Australia
    Verificato
    19061 feedback

    • rustynut
      rustynut
      Positivo

      Good stone great service

    • martin11
      martin11
      Positivo

      Great thank very much, lovely pearls.

    • philsgems
      philsgems
      Positivo

      Nice piece of rough. thankyou

    • philsgems
      philsgems
      Positivo

      Nice stone. Thankyou

    • philsgems
      philsgems
      Positivo

      Have received the rough. Nice colour. Thankyou

    5%
    Codice coupon SEDADEALS
    Valido fino a
    2nd Jan 2025

    Verifica

    Il programma Gemstone Sheriff consente ai nostri membri di richiedere un controllo su qualsiasi prodotto, che viene completato da un Gemologist indipendente che valuta l'accuratezza della descrizione e delle immagini dell'articolo.

    Dettagli di spedizione

    Spedizione:
    $16.00 21 giorni tramite Registered Shipping
    Spedizioni da:
    Australia

    Opzioni di pagamento

    • paypal
    • stripe
    Questo venditore aggiunge 10.00% tax alle transazioni in Australia .

    Panoramica

    Tipo di elenco : Standard
    Codice prodotto : 229269
    Inizia : 18th December 2024 07:00 pm PST
    * Tutti i prezzi sono in USD