DOI: 10.5281/zenodo.18669569
title: East Asian Prehistoric Human-Face Jade Form 06 (EANJ_FACE_06):
High-Resolution Digital Documentation of Morphology, Perforations, Surface Evolution, and Tool Traces

description: 1. Core Statement

1.1 This record contains high-resolution original visual data of a jade object with a human-face form (Form ID: EANJ_FACE_06).1.2 As part of a systematic digital documentation initiative, this dataset provides high-fidelity visual evidence intended to support morphological analysis, traceological studies, and materials science–related research.1.3 The digital documentation of this object forms part of an expanding corpus designed to serve as a citable baseline for future cross-object comparative research. No cross-sample comparative interpretation is attempted at this stage.

2. Access and Use Conditions

2.1 Access RestrictionsFor reasons of data security and adherence to academic standards, the high-resolution original files in this dataset are subject to restricted access.

2.2 Application RequirementsApplicants are required to submit a clearly defined research purpose and institutional affiliation via the Zenodo platform.

2.3 Use LimitationsThis dataset is intended exclusively for academic research, visual documentation, and comparative analysis. Any commercial use, non-academic dissemination, or reproduction beyond academic comparative purposes is strictly prohibited without the explicit authorization of the dataset publisher.

3. Dataset Composition

3.1 Overview DocumentationHigh-resolution photographs of the front and reverse views, documenting overall proportions and geometric structure.

3.2 Measurement ReferenceImages including a metric scale for quantitative reference.



Length: 5.2 cm

Width: 2.8 cm

Thickness: 0.9 cm

Weight: 19 g


3.3 Microscopic EvidenceHigh-magnification macro images documenting perforation morphology, micro-weathering features, and observable surface modifications.

4. List of Object Images

This dataset includes seven high-resolution images:



Front view: documenting facial morphology and overall proportions — EANJ_FACE_06_FRONT

Reverse view: documenting rear contour morphology — EANJ_FACE_06_REVERSE

Scaled view: image including metric scale for dimensional reference — EANJ_FACE_06_WITH_SCALE

Front perforation macro view: documenting perforation morphology — EANJ_FACE_06_MIC_FRONT_UNIF

Reverse perforation macro view: documenting perforation morphology — EANJ_FACE_06_MIC_REVERSE_UNIF

Top macro view: documenting irregular features on the top area — EANJ_FACE_06_MIC_ALTERATION

Front lower macro view: documenting linear grooves in the mouth area — EANJ_FACE_06_MIC_FRONT_WEAR


5. Observed Morphological Features

5.1 Overall FormThe object is dorsally wider and tapers toward the bottom, resembling an inverted-egg or shield shape, symmetrically arranged along the vertical axis. The top is nearly flat with slightly rounded edges, while the bottom tapers distinctly.

5.2 Facial FeaturesThe eyes are expressed as two shallow relief-like circular protrusions with surrounding circular grooves outlining the form.The nose is positioned along the central axis as a continuous protruding volume with a triangular profile; no distinct nasal wings are observed.The mouth is indicated by a shallow horizontal groove, without differentiation of upper and lower lips.

5.3 Reverse FeaturesThe reverse surface is relatively flat, with no clearly distinguishable complex morphological elements in the imagery.

5.4 Linear GroovesThree parallel obliquely oriented shallow linear grooves are visible on the frontal top area. Sediment residues and polishing traces are present within these grooves.

5.5 Vertical TransitionsA pronounced stepped transition is observed along the vertical axis from the nasal bridge to the mouth region.

5.6 Scope of DescriptionAll descriptions are strictly based on features directly observable in the images and do not involve interpretations regarding manufacturing techniques, function, chronology, or cultural attribution.

5.7 IntegrityFacial features show stable proportions and symmetry; no evident displacement, deformation, secondary modification, fracture, or loss is observable in the imagery.

6. Limitations, Observational Constraints, and Open Questions

6.1 Observational Constraints



The object tapers vertically, with eyes transitioning from incised to relief-like modeling, posing challenges for planar photography.

Surface cracks interfere with recognition of artificial micro-traces.

The complex morphology complicates standard measurement protocols, requiring adjusted quantitative approaches.


6.2 Open Questions



Whether the object’s dimensions and overall morphology fall at the margins of currently documented samples.

The relationship between micro-traces within linear shallow grooves and existing cracks.

The rationale and potential functional use of the asymmetrically positioned single perforation.

Mechanisms underlying irregular surface cracking.

Formation mechanisms of irregular features on the top area (e.g., erosion or secondary modification).


These open questions are presented solely as directions for further investigation and do not constitute conclusions.

7. Imaging and Processing

7.1 All images were captured in RAW format using a full-frame camera with a 90 mm macro lens and converted to JPEG files (approximately 42 megapixels per image) without localized retouching.7.2 Photography was conducted under controlled lighting with a neutral background to minimize environmental interference.7.3 No physical treatment or surface intervention was applied to the object during imaging.7.4 Post-processing, if applied, was limited to overall exposure and white balance adjustments to accurately reflect the material’s visual state.

8. Compliance and Due Diligence

8.1 The compilation and release of this dataset follow fundamental principles of academic data management.8.2 Prior to digitization and publication, the dataset underwent internal review addressing publication risk, usage boundaries, and adherence to academic standards to ensure transparency, prudence, and procedural integrity.8.3 This dataset is released exclusively as a non-interpretive visual record and does not constitute any form of academic conclusion, cultural attribution, chronological determination, or institutional position.