A great, old classic. This is a dense, heavy (131 grams) specimen of lead which is composed entirely of hoppered growth crystals to 1.0 cm in length. Native lead with well-developed crystals like this is extremely rare and desired by collectors of such oddities. In fact, lead is one of the more difficult of the common & major ore metals to obtain in native crystals; and the best really do come from just a few old mines in Langban and Harstigen, in Sweden. Such pieces mostly date to the 1800s or early 1900s (and this label is mid-1900s). Add to this that the location of the old and famous Langban Mine in Sweden has some value as well, and then this specimen becomes a treasure.
Pripisivanje: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
Slobodni ste:
da dijelite – da kopirate, distributirate i prenosite djelo
da remiksate – da prilagodite djelo
Pod sljedećim uslovima:
pripisivanje – Morate pripisati odgovarajuće autorske zasluge, osigurati link ka licenci i naznačiti jesu li napravljene izmjene. To možete uraditi na bilo koji razumni način, ali ne tako da se sugerira da davalac licence odobrava Vas ili Vašu upotrebu njegovog djela.
dijeli pod istim uslovima – Ako mijenjate, transformišete ili nadograđujete ovaj materijal, morate ga objaviti i distribuirati samo pod istom ili sličnom licencom poput ove.
This work is free and may be used by anyone for any purpose. If you wish to use this content, you do not need to request permission as long as you follow any licensing requirements mentioned on this page.
The Wikimedia Foundation has received an e-mail confirming that the copyright holder has approved publication under the terms mentioned on this page. This correspondence has been reviewed by a Volunteer Response Team (VRT) member and stored in our permission archive. The correspondence is available to trusted volunteers as ticket #2010022810018255.
Ova datoteka sadržava dodatne podatke koje je vjerovatno dodala digitalna kamera ili skener u procesu snimanja, odnosno digitalizacije. Ako je datoteka mijenjana, podaci možda nisu u skladu sa stvarnim stanjem.