Soapstone sinker S10358e

S10358e

ID2

LocationNorway

Approximate number of models30

Approximate size282 GB

Soapstone artifacts originate from Late Mesolithic or Early Neolithic sites in Western Norway (there are also several stray finds). Only those in the Late Mesolithic layers can be securely attributed stratigraphically. Chronologically they are attributed to 6400-3300 BCE and represent a material culture of the fishing oriented Stone Age societies of the region.

Dataset includes 30 sinkers for line fishing. They are various in size and shape. All are engraved with one or several lines that are the subject of further technological study. Usually, such sinkers are featured with furrow — a wider engraving supposedly used to tighten the line. There are also finer ones, often read as ornamentation. The origin of soapstone is suspected to be local, but is generally unclear.

Metadata

Description

An orange-grey sinker with a lengthwise furrow and side notches at the narrower left, right, top, and bottom parts. The archaeological context is secure, as well as the chronological attribution.

Date of discovery

N/A

Material source

Soapstone

From / Current location

N/A / Arkeologisk Museum, Universitetet I Stavanger

Museum №

10358

Museum № extention

Colour

orange-grey

Chronological attribution

Mesolithic

Site name

Hommersåk

Location name

N/A

Metric parameters

3.1x2.2x1.5 cm

Weight

14.22 g

Volume

5104.3 m³

Density

2785.886409 kg/m³

Paradata

Data acquisition technique

Image-based 3D modeling

Data acquisition date

20.11.2024

Data acquisition equipment

Canon EOS D5s R, Zeiss Milvus, f/1.4, 50mm, extension ring 12mm, polarizing filter

Focal length

Aperture

1/16

ISO

200

Exposure

1 s

Image processing software

Adobe Photoshop

3D model creation software

Agisoft Metashape v.1.8.1

Capturing strategy

210 digital images in RAW format. 6 rounds of imaging with different object orientations: bottom-up, up-bottom, close-up on bottom-up, close-up on the up-bottom, front side, back side. SfM photogrammetry, static camera within scenes, an artifact on the turntable, black background; scaled from calibrated metric scale bars. Remote shutter release.

Format of supplementary files

*.mtl
*.jpg

File format / 3D model

*.obj

Number of facets

3,390,580

Length of triangle side

0.038 mm

Referencing accuracy

0.02 mm

Measuring accuracy

0.059 mm