New entry Mar. 2026

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

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 + Min

Carnelian

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

NEW

Guinea

2018 - n.c.

Y&T - BF 2271

Andalusite

Ilmenite

Brasilianite

Anglesite

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

Guinea

2019 - n.c.

Y&T - 1001-1004

Jasper Dioptase

NEED

Guinea

2020 - n.c.

Y&T BF 2551

Amazonite

Chalcopyrite Malachite

NEED

NEW

Guinea

2020 - n.c.

Y&T - 10742-10743

Minerals of the world

Langban, Sweden

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.

Hrvatska - Croatia

Sulphur

Serpentinte rock

NEW

Hrvatska - Croatia

2026- n.c.

Y&T - BF n.c.

Indonesia

Copper Jasper

NEW

Indonesia

2000 - n.c.

Y&T - n.c.

Malagasy Repoblika - Madagascar

Cacoxenite

NEW

Madagascar

2015- n.c.

Y&T - BF cind

Fluorite

Rabbittite

Clinoclase

Bayldonite

NEW

Madagascar

2015- n.c.

Y&T - Multi cind

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

NEW

Niger

2023- n.c.

Y&T - 9233-9236

Poudretteite Inyoite

Witlockite

NEW

Niger

2023- n.c.

Y&T - BF 1992

Nederland - Hollande

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

Rhodocrosite

Lazurite

Fluorite

NEW

S.Tomé & Principe

2019 - n.c.

Y&T - BF 1262

Sodalite

Pyrrotite

Scolecite

Tourmaline

NEW

S.Tomé & Principe

2019 - n.c.

Y&T - 6635-6638

Red Beryl

Dumortierite

NEW

S.Tomé & Principe

2019 - n.c.

Y&T - BF 1290

Aquamarine

Uvarovite Siderite

Pyrite

Ruby

NEW

S.Tomé & Principe

2019 - n.c.

Y&T - 6795-6798

Quartz Amethyst

NEED

S.Tomé & Principe

2020 - n.c.

Y&T - BF 1405

Agate

NEED

S.Tomé & Principe

2020 - n.c.

Y&T - BF 1462

Lazurite

NEED

S.Tomé & Principe

2021- n.c.

Y&T - BF 1532

Autunite + minerals

NEED

S.Tomé & Principe

2021 - n.c.

Y&T - 7837-7840

Sierra Leone

Cavansite Uvarovite Gaernet

NEW

Sierra Leone

2019 - n.c.

Y&T - BF 1644

Kunzite

Heliodor

Celestine

Andradite garnet

NEW

Sierra Leone

2019 - n.c.

Y&T - 8735-8738

Lazurite Malachite Lepidolite

Grossular garnet

NEW

Sierra Leone

2023 - n.c.

Y&T - BF 1776

Clinochlore Chabasite Tourmaline Heulandite

NEW

Sierra Leone

2022 - n.c.

Y&T - 9251-9254

Kyanite

Red Beryl Uvarovite garnet

NEW

Sierra Leone

2019 - n.c.

Y&T - n.c.

Scapolite Mesolite Spodumene Spessartine garnet

NEW

Sierra Leone

2019 - n.c.

Y&T - n.c.

NEED

Sierra Leone

2022 - n.c.

Y&T -BF 2687

NEED

Sierra Leone

2023 - n.c.

Y&T - 9454-9457

NEED

Sierra Leone

2025 - n.c.

Y&T - n.c.

Tchad

NEED

Tchad

2020 - n.c.

Y&T - BF

Amethist

NEED

Tchad

2021 - n.c.

Y&T -

NEED

Tchad

2022 - n.c.

Y&T -

NEED

Tchad

2023 - n.c.

Y&T - BF 1881

NEED

Tchad

2023 - n.c.

Y&T - 8570-8573

Poudrettite

Whitlockite

NEED

Tchad

2023 - n.c.

Y&T - BF 1992

Lindgrenite Struvite

Jalpaite Harmotomo

NEED

Tchad

2023 - n.c. Multi

Y&T - 9233-9236

Mandela

Cuprite Bornite Olivine

NEW

Tchad

2024 - n.c.

Y&T -

Togo

Chalcopyrite Tourmaline

Chalcopyrite

Tourmaline

Pyrite Orpimento

NEW

Togo

2019 - n.c.

Y&T - 6552 - 6555

mMandela

Azurite

NEW

Togo

2019 - n.c.

Y&T -

6772 - 6775 (6772)

Mandela

Sugilite Vanadinite

NEW

Togo

2019- n.c.

Y&T - 6772 - 6775 (6775)

FDC

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2026 - Property of Odino Grubessi & Mario Ramus