Meteorites & Tektites

Tektites & Impact Glass: What to Record

Natural glass formed by meteorite impacts, e.g. moldavite, Libyan Desert Glass, indochinites, Darwin glass.

The Data Sheet for Tektites & Impact Glass

The 33 fields worth recording for tektites & impact glass, grouped as in the ordicio app. Fields marked with a broader category come from it; the others are specific to tektites & impact glass.

Identification

Official name Text Meteorites & tektites: Name as approved by the Meteoritical Society (Meteoritical Bulletin Database), e.g. Allende, NWA 869.
Classification Text Meteorites & tektites: Group and petrologic type as published, e.g. L6, CV3, Eucrite-mmict, IIIAB, Pallasite (PMG).
Fall or find Choice Meteorites & tektites: Whether the fall was observed or the meteorite was found later.
Observed fall
Find
Fall date Date Meteorites & tektites: Date of the observed fall.
Reference link Link Meteorites & tektites: Web page about this object or its reference entry (catalogue, database, sale).
Strewn field Text: Strewn field of the tektites or impact glass, e.g. Central European (moldavite), Australasian.

Specimen

Specimen type Choice, or your own Meteorites & tektites: What part of the meteorite this specimen is.
Complete individual
Fragment
Slice
Part slice
End cut
Thin section
Micromount
Weight (g) Number Meteorites & tektites: Weight of the object (without stand, frame or holder unless noted).
Height (cm) Number Meteorites & tektites: Height, measured upright as the object is meant to stand or hang.
Width (cm) Number Meteorites & tektites: Width, measured from the front.
Depth (cm) Number Meteorites & tektites: Depth, measured from front to back.
Total known weight (kg) Number Meteorites & tektites: Total known weight (TKW) of the meteorite as recorded.
Main mass holder Text Meteorites & tektites: Institution or collection that holds the main mass.

Classification details

Published petrological data.

Shock stage Choice Meteorites & tektites: Shock metamorphism stage of ordinary chondrites (Stoeffler et al.).
S1 (unshocked)
S2 (very weakly shocked)
S3 (weakly shocked)
S4 (moderately shocked)
S5 (strongly shocked)
S6 (very strongly shocked)
Weathering grade Choice Meteorites & tektites: Terrestrial weathering of the metal and sulfides (Wlotzka), W0 fresh to W6 heavily altered.
W0
W1
W2
W3
W4
W5
W6

Origin

Locality Text Meteorites & tektites: Exact find site, as specific as possible, e.g. quarry, mine and level, beach, outcrop.
Country Text Meteorites & tektites: Country of origin or issue, by its usual English name (historic states as named at the time, e.g. Kingdom of Bavaria).
Coordinates Place Meteorites & tektites: Geographic position of the locality (keep private for sensitive sites).
Collected by Text Meteorites & tektites: Person who collected or excavated the specimen.
Collection date Date Meteorites & tektites: Date the specimen was collected in the field.

Condition

Condition notes Text Meteorites & tektites: Faults, wear and damage in detail.
Certificate / expertise Text Meteorites & tektites: Certificates of authenticity or expert opinions, with issuer, date and number.

Acquisition

How and when the object came into the collection.

Acquisition date Date Meteorites & tektites: Date the object came into the collection.
Acquisition method Choice, or your own Meteorites & tektites: How the object came into the collection.
Purchase
Auction
Gift
Inheritance
Exchange / trade
Self-collected / found
Commission
Acquired from Text Meteorites & tektites: Seller, auction house (with sale and lot number), donor or place where it was found.
Purchase price Amount Meteorites & tektites: Price paid including fees and premiums.
Provenance Text Meteorites & tektites: Earlier owners and the object's history, oldest first, with sources (labels, invoices, sale catalogues).

Value

Estimated and insured value.

Estimated value Amount Meteorites & tektites: Current market value as estimated.
Valuation date Date Meteorites & tektites: Date of the current value estimate.
Valuation basis Choice Meteorites & tektites: What the estimated value is based on.
Own estimate
Recent sales / auction results
Dealer offer
Catalogue value
Professional appraisal
Insurance valuation
Insured value Amount Meteorites & tektites: Sum the object is insured for.

Collection record

Your own inventory data.

Inventory number Text Meteorites & tektites: Your own number or label for the object, e.g. C-0042, as written on its label or album page.
Storage location Text Meteorites & tektites: Where the object is kept, e.g. room, cabinet, drawer, album and page, box.