SlovenščinaCatalogue of Slovene clays

sample62Hardek Ormož · the Prlekija region

46.418911 16.158363

Collected by Ljubica Zgonec Zorko

The “Art and Craft Centre” Slovenska Bistrica – Hardek Ormož · the Prlekija region
The “Art and Craft Centre” Slovenska Bistrica
Photo Ljubica Zgonec Zorko

Hardeška šuma

The Centre for Handicraft and Art Craft Slovenska Bistrica was founded in 2003 under the Phare cross-border cooperation programme. Through the project, we arranged and equipped a ceramic studio in the manor house Slovenska Bistrica and trained mentors for teaching ceramics at the Austrian school Ortweinschule Graz. Since 2014, the Centre for Handicraft and Art Craft acts as a social enterprise Rokodelska zadruga (Handicraft co-operative). We are members of the Consortium of Slovenian Craftsmen Centres and the emphasis is given to ceramics and pottery.

Ljubica Zgonec Zorko

Sample 62 is clay from Hardek Ormož (the Prlekija region). The recommended firing temperature is 900–1100 °C. The beginning of sintering is at 1100–1250 °C. At 1100 °C shrinkage is 10 % and porosity 6 %.

Clay samples

  1. Sample 62 – 800 °C800 °C
  2. Sample 62 – 900 °C900 °C
  3. Sample 62 – 1000 °C1000 °C
  4. Sample 62 – 1100 °C1100 °C
  5. Sample 62 – 1200 °C1200 °C
  6. Sample 62 – 1300 °C1300 °C
segrevanjeheating uppriporočena temp. žganjarecommended firing temperatureszačetek sintranjathe beginning of sinteringmehčanjesofteningžganje/firing °C%%00224466881010121214141616181820202222suha glina/dry clay900 °C1000 °C1100 °C1200 °C1300 °C
  • segrevanje
    heating up
  • priporočena temp. žganja
    recommended firing temperatures
  • začetek sintranja
    the beginning of sintering
  • mehčanje
    softening
%048121620suhadry9001000110012001300°C
poroznost/porosity %skrčki/shrinkage %

Clay preparation for testing

  1. unprocessed clayunprocessed clay
  2. sifted and dried claysifted and dried clay
  3. 012341.00.20.05%grain size in mm
  4. 4 % = 1.0 mm4 % = 1.0 mm
  5. 0.7 % = 0.2 mm0.7 % = 0.2 mm
  6. 0.3 % = 0.05 mm0.3 % = 0.05 mm