verre: French Medieval Glass Composition

Description

Chemical analysis (electron probe X-ray micro analysis) of 398 medieval glass vessels found in France.

Usage

verre

Arguments

Format

A data.frame with 398 observations and 17 variables:

Site: factor: CNL (Cour Napoléon, Louvre), ORL (Orléans), POI (Poitiers), ANG (Angers), OMO (Omonville, Seine Maritime), ROU (Rouen), MEA (Meaux), CHL (Châlons-sur-Marne), PAI (Pairu, Argonne, Ardennes), BER (Bercettes, Argonne, Ardennes), BIN (Binois, Argonne, Ardennes), CHE (Chevrie, Argonne, Ardennes), MIT (Mitte, Argonne, Ardennes), MET (Metz), CHM (Chambaran).
Sample: character: sample code.
Type: character: typology.
Age: character: century.
Periode: factor: I (9th-12th century), II (13th-first half of the 15th century), III (end of the 15th to end of the 16th century), IV (end of 16th to end of the 17th century).
Tint: factor: ? (unknown), B (blue), CL (colourless), CLg (colourless -- greyish tint), PB (pale blue; PGE: pale greenish), PGE-B (pale green-blue or blue-green), PGY-B (pale grey-blue), R (opaque red), W (opaque white), *av (added aventurine spots), *bl (added thread blue or blue spots), *r (added thread opaque red or opaque red spots), *w (added thread opaque white).
Na2O: numeric: Na2O content (percent).
CaO: numeric: CaO content (percent).
K2O: numeric: K2O content (percent).
MgO: numeric: MgO content (percent).
P2O5: numeric: P2O5 content (percent).
SiO2: numeric: SiO2 content (percent).
Al2O3: numeric: Al2O3 content (percent).
FeO: numeric: FeO content (percent).
MnO: numeric: MnO content (percent).
Cl: numeric: Cl content (percent).
Reference: character: site reference.

References

Barrera J., Velde B. (1989). A study of french medieval glass composition. Archéologie médiévale, 19, 81-130. tools:::Rd_expr_doi("10.3406/arcme.1989.953").

Examples

Run this code

plot(
  x = verre$Na2O,
  y = verre$CaO / (verre$CaO + verre$K2O),
  type = "p",
  xlab = expression("Na"[2]*"O (%)"),
  ylab = expression("CaO"/"(CaO"+"K"[2]*"O)")
)