See... FDC and Postcard
Stamps printed in excessive quantities
According to an article in the Philatelic Webmaster Organization, some companies that have printed stamps on behalf of poor countries (especially in Africa) are printed in excessive quantities aimed at collecting.
Stamps are only apparently approved by local postal administrations,
The article mentions in particular
many stamps and leaflets related to minerals, from countries such as:
Chad, Comoros, Mali, Niger, Congo ,
Burundi, Guinea Rep., Guiné Bissau Rep.,
Solomon Is., S.Tome & Prince, Togolaise Rep.....
*****
Black number = Scott catalog
Blue or red number = Yvert et Tellier catalog
****
Scientists of Geosciences
| Image |
Country |
Year |
Subject |
Yvert |
Set |
 |
Mexico NEW |
1965 |
Andrés Manuel del Río 1764 – 1849 Mexican scientist, chemist, and geologist of Spanish origin.
He was the discover the chemical element Vanadium |
Scott 961 |
|
Meteorites
| Image |
Country |
Year |
Subject |
Yvert |
Set |
| |
|
|
|
|
|
Gems and Jewels, FDC and Postcards
| Image |
Country |
Year |
Subject |
Yvert |
Set |
| |
|
|
|
|
|
Minerals, FDC and Postcards from 2018
Djibouti Republique
Celestine + Min |
NEED |
|
| |
Djibouti Republique 2022- n-c. Y&T - BF 770
|
|
| Anglesite + Min |
NEED |
NEW
|
|
Djibouti Republique 2022- n-c. Y&T - BF 771
|
|
Auricalcite + Min |
NEED |
|
|
Djibouti Republique 2022 - n.c. Y&T - BF 997
|
|
Calcite + MinCarnelian |
NEED |
|
| |
Djibouti Republique 2022 - n.c. Y&T - BF998
|
|
| Andalusite Uvarovite Spudumene |
NEED |
Minerals of the world
|
|
Djibouti Republique 2022 - n.c. Y&T - 3842-3848
|
|
| Aquamarine Turquoise Chrysoberyl |
NEED |
|
|
Djibouti Republique 2022 - n.c. Y&T - 4344-4346
|
|
Volcanoes + Peridot |
NEED |
|
|
Djibouti Republique 2023 - BF n.c. Y&T - BF 1435
|
|
Volcanoes + Brucite + min |
NEED |
|
|
Djibouti Republique 2023 - BF n.c. Y&T - 6011-6016 |
|
Mandela + min |
NEED |
|
|
Djibouti Republique 2023 - BF n.c. Y&T - n.c. |
|
Guinea
| Ilmenite |
NEED |
NEW
|
|
Guinea 2018 - n.c. Y&T - BF2271
|
|
| Andalusite |
NEED |
NEW |
|
Guinea 2018 - n.c. Y&T - 9593-9596
|
|
Chondrodite Uvarovite Pyrite |

|
NEW |
|
Guinea 2019 - n.c. Y&T - BF 2433
|
|
Sphalerite Belomorite Chrysberyl Edenite |

|
NEW NEW |
|
Guinea 2019 - n.c. Y&T - 1001-1004
|
|
| Jasper Dioptase |
NEED |
|
|
Guinea 2020 - n.c. Y&T BF 2551
|
|
AmazoniteChalcopyrite Malachite |
NEED |
NEW |
|
Guinea 2020 - n.c. Y&T - 10742-10743
|
|
Minerals of the world Langban, Sweden |

|
NEW NEW |
|
Guinea 2021 - n.c. Y&T - 11357-11364
|
|
| Amethist |
NEED |
NEW |
|
Guinea 2021 - n.c. Y&T - BF 2701
|
|
Pietersite + various |
NEED |
NEW |
|
Guinea 2021 - n.c. Y&T - 11060-11063
|
|
Guiné-Bissau
Spessartine garnet Red beryl
|
 |
NEW |
| |
Guiné Bissau 2019 - n.c. Y&T - BF 1519 |
|
Atacamite Celestine Andalusite Realgar
|
 |
NEW |
| |
Guiné Bissau 2019 - n.c. Y&T - 8066 - 8069 |
|
Various minerals Carnelian
|
 |
NEW |
| |
Guiné Bissau 2019 - n.c. Y&T - BF 1565 |
|
Diopside Opal Amethyst Spinel Bauxite
|
 |
NEW |
| |
Guiné Bissau 2019 - n.c. Y&T - 8205-8209 |
|
Hiddenite Amethyst
|
 |
NEW |
| |
Guiné Bissau 2019 - n.c. Y&T - BF1610 |
|
Muscovite Rodonite Hematite Fluorite Magnesite Amazonite
|
 |
NEW |
| |
Guiné Bissau 2019 - n.c. Y&T - 8429-8434 |
|
|
NEED |
|
| |
Guiné Bissau 2021 - n.c. Y&T - BF 1471 |
|
|
NEED |
|
| |
Guiné Bissau 2021 - n.c. Y&T -7832-7836 |
|
|
NEED |
|
| |
Guiné Bissau 2021 - n.c. Y&T - |
|
|
NEED |
|
| |
Guiné Bissau 2021 - n.c. Y&T -7332-7336 |
|
|
NEED |
|
| |
Guiné Bissau 2023 - n.c. Y&T - |
|
|
NEED |
|
|
Guiné Bissau 2024 - n.c. Y&T - n.c.
|
|
Indonesia
| Copper Jasper |
 |
NEW
|
|
Indonesia 2000 - n.c. Y&T - n.c.
|
|
Maldives
Minerals + Shells |
 |
NEW
|
|
Maldives 2017- n-c. Y&T - BF 1100
|
|
Minerals + Shells |
 |
NEW
|
|
Maldives 2017- n-c. Y&T - 5954-5957
|
|
Mocambique
Museum in Berlin Emerald |
 |
NEW
|
|
Mocambique 2018- n-c. Y&T - BF 1247
|
|
Tourmaline Garnet Spessartite Phenacite Scapolite |
 |
NEW
|
|
Mocambique 2018- n-c. Y&T - BF 1254
|
|
Scapolite Garnet Demantoide |
 |
NEW
|
|
Mocambique 2019- n-c. Y&T - BF 1367
|
|
Beryl Andalusite Andradite Celestine |
 |
NEW
|
|
Mocambique 2019- n-c. Y&T - 8159-8162
|
|
Yellow Quartz |
 |
NEW
|
|
Mocambique 2019- n-c. Y&T - BF 1431
|
|
Cinnabar |
 |
NEW
|
|
Mocambique 2019- n-c. Y&T - BF 1498
|
|
Siderite Torbernite |
 |
NEW
|
|
Mocambique 2020 - n-c. Y&T - BF 1528
|
|
Siderite Torbernite |
 |
NEW
|
|
Mocambique 2020 - n-c. Y&T - 8802-8805
|
|
Niger
Lindgrenite Struvite Jalpaite Harmotomo Jalpaite Harmotomo |
 |
NEW
|
|
Niger 2023- n.c. Y&T - 9233-9236
|
|
Poudretteite Inyoite Witlockite |
 |
NEW
|
|
Niger 2023- n.c. Y&T - BF 1992
|
|
Nederland - Hollande
2021 - n.c. |
2021 - n.c.** |
2021 - n.c. ** |
2022 -n.c. |
 |
 |
 |
 |
Kyanite Al2(SiO4)O |
Agate SiO2 |
Limonite |
Malachite |
2022 -n.c. |
2022 -n.c. |
2022 -n.c. |
2022 -n.c. |
 |
 |
 |
 |
Quartz v. amethist SiO2 |
Vanadinite Pb5(VO4)3Cl Data errrata 2202 |
Septaria - rock |
Celestine SrSO4 |
2022 -n.c. |
2022 -n.c. |
2022 -n.c. |
2022 -n.c. |

|
 |
 |
|
Labradorite (Ca,Na)(Si,Al)4O8 |
Beryl v. Emerald |
Calcite |
Descloizite (Pb,Zn)2VO4OH |
2024 - n.c. |
2024- n.c. |
2024 - n.c. |
2024 -n.c. |

|
 |
 |
 |
1 - Proustite |
2 - Cavansite |
3- Brasilianite |
4 - Chrysoberylyl |
2024 - n.c. |
2024 - n.c. |
2024 - n.c. |
2024 - n.c. |
 |
 |
 |
Need |
| 5 - Brookite |
6 - Chalcopyrite |
7 - Alabandite |
8 - calcite |
2024 - n.c. |
2024 - n.c. |
2024 - n.c. |
2024 - n.c. |
 |
|
 |
|
9 - Benitoite |
10 - Cordierite |
11 - Apatite |
12 - Aquamarine |
S.Tomé & Principe
|
NEED |
|
|
S.Tomé & Principe 2019 - n.c. Y&T - BF
|
|
|
|
|
|
S.Tomé & Principe 2019 - n.c. Y&T - BF
|
|
|
|
|
|
S.Tomé & Principe 2019 - n.c. Y&T - BF
|
|
|
|
|
|
S.Tomé & Principe 2019 - n.c. Y&T - BF
|
|
|
|
|
|
S.Tomé & Principe 2020 - n.c. Y&T - 7008-7011
|
|
|
|
|
|
S.Tomé & Principe 2020 - n.c. Y&T - 7008-7011
|
|
|
|
|
|
S.Tomé & Principe 2021- n.c. Y&T - BF1634
|
|
|
|
|
|
S.Tomé & Principe 2021 - n.c. Y&T -
|
|
|
|
|
|
S.Tomé & Principe 2021 - n.c. Y&T -
|
|
Sierra Leone
| |
|
|
|
Sierra Leone 2019 - n.c. Y&T -
|
|
| |
|
|
|
Sierra Leone 2019 - n.c. Y&T - 9454-9457
|
|
| |
|
|
|
Sierra Leone 2023 - n.c. Y&T - BF 2687
|
|
| |
|
|
|
Sierra Leone 2022 - n.c. Y&T -
|
|
| |
|
|
|
Sierra Leone 2022 - n.c. Y&T - n.c.
|
|
| |
|
|
|
Sierra Leone 2023 - n.c. Y&T - n.c.
|
|
|
|
|
|
Sierra Leone 2025 - n.c. Y&T - n.c.
|
|
Tchad
|
|
|
|
Tchad 2020 - n.c. Y&T - BF |
|
Amethist |
|
|
|
Tchad 2021 - n.c. Y&T - |
|
|
|
|
|
Tchad 2022 - n.c. Y&T - |
|
e |
|
|
|
Tchad 2023 - n.c. Y&T - BF 1881 |
|
e |
|
|
|
Tchad 2023 - n.c. Y&T - 8570-8573 |
|
Poudrettite Whitlockite e |
|
|
|
Tchad 2023 - n.c. Y&T - BF 1992 |
|
Lindgrenite Struvite Jalpaite Harmotomo |
|
|
|
Tchad 2023 - n.c. Multi Y&T - 9233-9236 |
|
Mandela + Cuprite Bornite Olivine |
 |
NEW
|
|
Tchad 2024 - n.c. Y&T - |
|
Togo
| Analcime |
|
|
|
Togo 2019 - n.c. Y&T - |
|
| Analcim |
|
|
|
Togo 2021 - n.c. Y&T - |
|
| |
|
|
|
Togo 2022- n.c. Y&T - |
|
| |
|
|
|
Togo 2023- n.c. Y&T - |
|
|
|
|
|
Togo 2024 - n.c. Y&T - |
|
FDC
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2025 - Property of Odino Grubessi & Mario Ramus